From dc99a450dddbe1a0076e809c09d433e9420ece30 Mon Sep 17 00:00:00 2001
From: Oleh Kurpiak <oleh.kurpiak@gmail.com>
Date: Mon, 2 Jan 2023 11:10:48 +0200
Subject: [PATCH] [Java][Spring] fix @Operation content for array response
 (#14201)

---
 .../codegen/examples/ExampleGenerator.java    |  7 +---
 .../codegen/examples/XmlExampleGenerator.java |  3 ++
 .../main/resources/JavaSpring/api.mustache    |  3 +-
 .../codegen/ExampleGeneratorTest.java         |  4 +-
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/DefaultApi.java |  1 +
 .../org/openapitools/api/AnotherFakeApi.java  |  1 +
 .../java/org/openapitools/api/FakeApi.java    |  1 +
 .../api/FakeClassnameTags123Api.java          |  1 +
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/PetApi.java     | 19 ++++-----
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/BarApi.java     |  1 +
 .../java/org/openapitools/api/FooApi.java     |  5 ++-
 .../java/org/openapitools/api/PetApi.java     | 21 +++++-----
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/PetApi.java     | 21 +++++-----
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../org/openapitools/api/AnotherFakeApi.java  |  1 +
 .../java/org/openapitools/api/FakeApi.java    |  1 +
 .../api/FakeClassnameTestApi.java             |  1 +
 .../java/org/openapitools/api/PetApi.java     | 19 ++++-----
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../org/openapitools/api/AnotherFakeApi.java  |  1 +
 .../java/org/openapitools/api/FakeApi.java    |  1 +
 .../api/FakeClassnameTestApi.java             |  1 +
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../org/openapitools/api/PetApiDelegate.java  | 10 ++---
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../org/openapitools/api/AnotherFakeApi.java  |  1 +
 .../java/org/openapitools/api/FakeApi.java    |  1 +
 .../api/FakeClassnameTestApi.java             |  1 +
 .../java/org/openapitools/api/PetApi.java     | 19 ++++-----
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../org/openapitools/api/AnotherFakeApi.java  |  1 +
 .../java/org/openapitools/api/FakeApi.java    |  1 +
 .../api/FakeClassnameTestApi.java             |  1 +
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../org/openapitools/api/PetApiDelegate.java  | 10 ++---
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/PetApi.java     | 12 +++---
 .../org/openapitools/api/AnotherFakeApi.java  |  1 +
 .../java/org/openapitools/api/FakeApi.java    |  1 +
 .../api/FakeClassnameTestApi.java             |  1 +
 .../java/org/openapitools/api/PetApi.java     | 19 ++++-----
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../java/org/openapitools/api/PetApi.java     | 21 +++++-----
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../Org.OpenAPITools/Controllers/PetApi.cs    | 12 +++---
 .../Org.OpenAPITools/Controllers/PetApi.cs    | 12 +++---
 .../Org.OpenAPITools/Controllers/PetApi.cs    | 12 +++---
 .../Org.OpenAPITools/Controllers/PetApi.cs    | 12 +++---
 .../Org.OpenAPITools/Controllers/PetApi.cs    | 12 +++---
 .../Org.OpenAPITools/Controllers/PetApi.cs    | 12 +++---
 .../Org.OpenAPITools/Controllers/PetApi.cs    | 10 ++---
 .../openapitools/api/PetApiRoutesImpl.java    |  4 +-
 .../org/openapitools/server/apis/PetApi.kt    | 40 +++++++++++++++++--
 .../org/openapitools/server/apis/PetApi.kt    | 40 +++++++++++++++++--
 .../org/openapitools/api/PetApiDelegate.kt    | 12 +++---
 .../org/openapitools/api/AnotherFakeApi.java  |  1 +
 .../java/org/openapitools/api/FakeApi.java    |  1 +
 .../api/FakeClassnameTestApi.java             |  1 +
 .../java/org/openapitools/api/PetApi.java     |  9 +++--
 .../java/org/openapitools/api/StoreApi.java   |  1 +
 .../java/org/openapitools/api/UserApi.java    |  1 +
 .../org/openapitools/api/NullableApi.java     |  1 +
 .../java/org/openapitools/api/PetApi.java     | 10 ++---
 .../java/org/openapitools/api/PetApi.java     | 10 ++---
 .../java/org/openapitools/api/PetApi.java     | 10 ++---
 .../org/openapitools/api/PetApiDelegate.java  | 10 ++---
 .../org/openapitools/api/PetApiDelegate.java  | 10 ++---
 .../java/org/openapitools/api/PetApi.java     | 12 +++---
 .../java/org/openapitools/api/PetApi.java     | 10 ++---
 .../org/openapitools/api/PetApiDelegate.java  | 10 ++---
 .../org/openapitools/api/PetApiDelegate.java  | 10 ++---
 .../org/openapitools/api/PetApiDelegate.java  | 10 ++---
 .../java/org/openapitools/api/PetApi.java     | 10 ++---
 .../java/org/openapitools/api/PetApi.java     | 10 ++---
 .../java/org/openapitools/api/PetApi.java     | 10 ++---
 .../virtualan/api/AnotherFakeApi.java         |  1 +
 .../openapitools/virtualan/api/FakeApi.java   |  1 +
 .../virtualan/api/FakeClassnameTestApi.java   |  1 +
 .../openapitools/virtualan/api/PetApi.java    | 19 ++++-----
 .../openapitools/virtualan/api/StoreApi.java  |  1 +
 .../openapitools/virtualan/api/UserApi.java   |  1 +
 .../java/org/openapitools/api/PetApi.java     | 10 ++---
 111 files changed, 409 insertions(+), 265 deletions(-)

diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/ExampleGenerator.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/ExampleGenerator.java
index a1b973e7ea72..a8d7286b582b 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/ExampleGenerator.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/ExampleGenerator.java
@@ -80,12 +80,9 @@ private List<Map<String, String>> generateFromResponseSchema(Schema responseSche
 
         if (ModelUtils.isArraySchema(responseSchema)) { // array of schema
             ArraySchema as = (ArraySchema) responseSchema;
-            if (as.getItems() != null && StringUtils.isEmpty(as.getItems().get$ref())) { // array of primitive types
+            if (as.getItems() != null) { // array of primitive types
                 return generate((Map<String, Object>) responseSchema.getExample(),
-                        new ArrayList<String>(producesInfo), as.getItems());
-            } else if (as.getItems() != null && !StringUtils.isEmpty(as.getItems().get$ref())) { // array of model
-                return generate((Map<String, Object>) responseSchema.getExample(),
-                        new ArrayList<String>(producesInfo), ModelUtils.getSimpleRef(as.getItems().get$ref()));
+                        new ArrayList<>(producesInfo), as);
             } else {
                 // TODO log warning message as such case is not handled at the moment
                 return null;
diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/XmlExampleGenerator.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/XmlExampleGenerator.java
index bee395a1d6ad..3151c0bffd94 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/XmlExampleGenerator.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/examples/XmlExampleGenerator.java
@@ -155,6 +155,9 @@ protected String toXml(String name, Schema schema, int indent, Collection<String
             }
         } else if (StringUtils.isNotEmpty(schema.get$ref())) {
             Schema actualSchema = examples.get(schema.get$ref());
+            if (actualSchema == null) {
+                actualSchema = examples.get(ModelUtils.getSimpleRef(schema.get$ref()));
+            }
             sb.append(toXml(actualSchema, indent, path));
         } else {
             if (name != null) {
diff --git a/modules/openapi-generator/src/main/resources/JavaSpring/api.mustache b/modules/openapi-generator/src/main/resources/JavaSpring/api.mustache
index 28e73b574a0d..9991e19aaf7a 100644
--- a/modules/openapi-generator/src/main/resources/JavaSpring/api.mustache
+++ b/modules/openapi-generator/src/main/resources/JavaSpring/api.mustache
@@ -11,6 +11,7 @@ package {{package}};
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -150,7 +151,7 @@ public interface {{classname}} {
             {{#responses}}
             @ApiResponse(responseCode = "{{{code}}}", description = "{{{message}}}"{{#baseType}}, content = {
                 {{#produces}}
-                @Content(mediaType = "{{{mediaType}}}", schema = @Schema(implementation = {{{baseType}}}.class)){{^-last}},{{/-last}}
+                @Content(mediaType = "{{{mediaType}}}", {{#isArray}}array = @ArraySchema({{/isArray}}schema = @Schema(implementation = {{{baseType}}}.class){{#isArray}}){{/isArray}}){{^-last}},{{/-last}}
                 {{/produces}}
             }{{/baseType}}){{^-last}},{{/-last}}
             {{/responses}}
diff --git a/modules/openapi-generator/src/test/java/org/openapitools/codegen/ExampleGeneratorTest.java b/modules/openapi-generator/src/test/java/org/openapitools/codegen/ExampleGeneratorTest.java
index 661ddb2fb65d..45b9260830df 100644
--- a/modules/openapi-generator/src/test/java/org/openapitools/codegen/ExampleGeneratorTest.java
+++ b/modules/openapi-generator/src/test/java/org/openapitools/codegen/ExampleGeneratorTest.java
@@ -90,7 +90,7 @@ public void generateFromResponseSchemaWithArrayOfModel() {
 
         assertEquals(1, examples.size());
         assertEquals("application/json", examples.get(0).get("contentType"));
-        assertEquals("\"string schema example value\"", examples.get(0).get("example"));
+        assertEquals("[ \"string schema example value\", \"string schema example value\" ]", examples.get(0).get("example"));
         assertEquals("200", examples.get(0).get("statusCode"));
     }
 
@@ -119,7 +119,7 @@ public void generateFromResponseSchemaWithArrayOfPrimitiveTypes() {
 
         assertEquals(1, examples.size());
         assertEquals("application/json", examples.get(0).get("contentType"));
-        assertEquals("\"primitive types example value\"", examples.get(0).get("example"));
+        assertEquals("[ \"primitive types example value\", \"primitive types example value\" ]", examples.get(0).get("example"));
         assertEquals("200", examples.get(0).get("statusCode"));
     }
 
diff --git a/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/PetApi.java
index 77e20f738467..e1ca2b53dfc2 100644
--- a/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/PetApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -115,8 +116,8 @@ ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -151,8 +152,8 @@ ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/StoreApi.java
index 15bad92ad35a..96ba8c264322 100644
--- a/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/UserApi.java
index ffc58f2cd32b..a950097594e4 100644
--- a/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-3/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/PetApi.java
index 760328649b20..3b16fd102836 100644
--- a/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/PetApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -106,8 +107,8 @@ CompletableFuture<ResponseEntity<Void>> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -142,8 +143,8 @@ CompletableFuture<ResponseEntity<List<Pet>>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/StoreApi.java
index 93e9dd1ba09f..b9f04a6d8155 100644
--- a/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/UserApi.java
index 2b9b3a703196..51492b39a72f 100644
--- a/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-async/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-date-time/src/main/java/org/openapitools/api/DefaultApi.java b/samples/openapi3/client/petstore/spring-cloud-date-time/src/main/java/org/openapitools/api/DefaultApi.java
index 0c00e65f9a3a..c3136412d9d1 100644
--- a/samples/openapi3/client/petstore/spring-cloud-date-time/src/main/java/org/openapitools/api/DefaultApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-date-time/src/main/java/org/openapitools/api/DefaultApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/AnotherFakeApi.java b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/AnotherFakeApi.java
index 35cd6d5afc10..8b1637a81396 100644
--- a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/AnotherFakeApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/AnotherFakeApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/FakeApi.java b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/FakeApi.java
index aa53bcb8c490..8ae237eb738f 100644
--- a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/FakeApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/FakeApi.java
@@ -18,6 +18,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/FakeClassnameTags123Api.java b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/FakeClassnameTags123Api.java
index d0dc258920d2..17e1dda0fa02 100644
--- a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/FakeClassnameTags123Api.java
+++ b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/FakeClassnameTags123Api.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/PetApi.java
index 6411cb6aa164..cb2b400e6eee 100644
--- a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/PetApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -110,8 +111,8 @@ ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -146,8 +147,8 @@ ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/StoreApi.java
index 66c6f997306b..7605f77897e4 100644
--- a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/UserApi.java
index 7f4a34020c0c..a2aadee3ea56 100644
--- a/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-oas3-fakeapi/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/PetApi.java
index d00750ed78ab..792108d13a13 100644
--- a/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/PetApi.java
@@ -12,6 +12,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -107,8 +108,8 @@ ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -144,8 +145,8 @@ ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/StoreApi.java
index 9b7ab5e5f7af..0bfc14bacec9 100644
--- a/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/UserApi.java
index 25b855e7dd5a..c935ef199c66 100644
--- a/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud-spring-pageable/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/PetApi.java
index b32d37b3e315..4a0e2eca0e85 100644
--- a/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/PetApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -115,8 +116,8 @@ ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -151,8 +152,8 @@ ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/StoreApi.java
index 4564d95596c4..ffabbb88143e 100644
--- a/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/UserApi.java
index 3733b5fedc30..e80f41369b78 100644
--- a/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/client/petstore/spring-cloud/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/PetApi.java
index fe47723b1f85..002638053e47 100644
--- a/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/PetApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -105,8 +106,8 @@ ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -141,8 +142,8 @@ ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/StoreApi.java
index d95949ac2d17..d712b5a63fa0 100644
--- a/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/UserApi.java
index 777a841dadda..00a7cb61010c 100644
--- a/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/client/petstore/spring-stubs-skip-default-interface/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/PetApi.java
index b8adaec29ba3..88f421ce4b48 100644
--- a/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/PetApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -115,8 +116,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -135,12 +136,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -168,8 +169,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
@@ -188,12 +189,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -246,7 +247,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/StoreApi.java
index f6515d4edab1..c6224aecf7b3 100644
--- a/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/UserApi.java
index 0c2919d2ab13..90e0bee89f28 100644
--- a/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/client/petstore/spring-stubs/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/spring-boot-oneof/src/main/java/org/openapitools/api/BarApi.java b/samples/openapi3/server/petstore/spring-boot-oneof/src/main/java/org/openapitools/api/BarApi.java
index db8023afc889..4d9555770aa6 100644
--- a/samples/openapi3/server/petstore/spring-boot-oneof/src/main/java/org/openapitools/api/BarApi.java
+++ b/samples/openapi3/server/petstore/spring-boot-oneof/src/main/java/org/openapitools/api/BarApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/spring-boot-oneof/src/main/java/org/openapitools/api/FooApi.java b/samples/openapi3/server/petstore/spring-boot-oneof/src/main/java/org/openapitools/api/FooApi.java
index 3a8c99e15abd..59d263d010c5 100644
--- a/samples/openapi3/server/petstore/spring-boot-oneof/src/main/java/org/openapitools/api/FooApi.java
+++ b/samples/openapi3/server/petstore/spring-boot-oneof/src/main/java/org/openapitools/api/FooApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -89,7 +90,7 @@ default ResponseEntity<FooRefOrValue> createFoo(
         tags = { "Foo" },
         responses = {
             @ApiResponse(responseCode = "200", description = "Success", content = {
-                @Content(mediaType = "application/json;charset=utf-8", schema = @Schema(implementation = FooRefOrValue.class))
+                @Content(mediaType = "application/json;charset=utf-8", array = @ArraySchema(schema = @Schema(implementation = FooRefOrValue.class)))
             })
         }
     )
@@ -104,7 +105,7 @@ default ResponseEntity<List<FooRefOrValue>> getAllFoos(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json;charset=utf-8"))) {
-                    String exampleString = "null";
+                    String exampleString = "[ null, null ]";
                     ApiUtil.setExampleResponse(request, "application/json;charset=utf-8", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/PetApi.java
index 892b590a10d8..882fce0a98a7 100644
--- a/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/PetApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -80,7 +81,7 @@ default ResponseEntity<Pet> addPet(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -139,8 +140,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -159,12 +160,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -192,8 +193,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
@@ -212,12 +213,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -270,7 +271,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/StoreApi.java
index 431f4f5d51e6..8b9abfd24df8 100644
--- a/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/UserApi.java
index 95ba342625fe..447e35aa773d 100644
--- a/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/server/petstore/spring-boot-springdoc/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/PetApi.java
index 65c950095272..f2f3c493b41b 100644
--- a/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/PetApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -80,7 +81,7 @@ default ResponseEntity<Pet> addPet(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -139,8 +140,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -159,12 +160,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -192,8 +193,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
@@ -212,12 +213,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -270,7 +271,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/StoreApi.java
index d40e26d5cfd9..0ea5dd3d34be 100644
--- a/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/UserApi.java
index 39bc673a003f..cc1f53baef0f 100644
--- a/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/server/petstore/springboot-3/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/AnotherFakeApi.java b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/AnotherFakeApi.java
index 686658862e56..8e292d1b615f 100644
--- a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/AnotherFakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/AnotherFakeApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/FakeApi.java b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/FakeApi.java
index f14f76675bc1..720be5e7eafe 100644
--- a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/FakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/FakeApi.java
@@ -19,6 +19,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/FakeClassnameTestApi.java b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
index 07f29752b7c4..64158a0141d9 100644
--- a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
+++ b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/PetApi.java
index 75063ee1a142..986c5172d231 100644
--- a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/PetApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -120,8 +121,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -140,12 +141,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -173,8 +174,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
@@ -193,12 +194,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -251,7 +252,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/StoreApi.java
index be82f953d4f4..b096b1361c8e 100644
--- a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/UserApi.java
index f55834070d44..0a7d52d80442 100644
--- a/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/AnotherFakeApi.java b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/AnotherFakeApi.java
index 74920dd773da..e085bd710626 100644
--- a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/AnotherFakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/AnotherFakeApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/FakeApi.java b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/FakeApi.java
index 91fcc67fb1d5..aae40e37703a 100644
--- a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/FakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/FakeApi.java
@@ -19,6 +19,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/FakeClassnameTestApi.java b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
index d8929ca47328..ff9d8f79ba76 100644
--- a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
+++ b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApi.java
index 28a8cf330568..0c05eb88ae4e 100644
--- a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -114,8 +115,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -152,8 +153,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApiDelegate.java b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApiDelegate.java
index 1f97f43b6db8..1e9ad7f94f4f 100644
--- a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApiDelegate.java
+++ b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApiDelegate.java
@@ -66,12 +66,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(List<String> status) {
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -96,12 +96,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(Set<String> tags) {
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -130,7 +130,7 @@ default ResponseEntity<Pet> getPetById(Long petId) {
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/StoreApi.java
index 934b6e6be95f..58e5a4d346f4 100644
--- a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/UserApi.java
index 4264ccdd4c4b..dee9ad46b135 100644
--- a/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/AnotherFakeApi.java b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/AnotherFakeApi.java
index 686658862e56..8e292d1b615f 100644
--- a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/AnotherFakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/AnotherFakeApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/FakeApi.java b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/FakeApi.java
index 12914c8269cf..df80f94c55ea 100644
--- a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/FakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/FakeApi.java
@@ -19,6 +19,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/FakeClassnameTestApi.java b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
index 07f29752b7c4..64158a0141d9 100644
--- a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
+++ b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/PetApi.java
index 0244e5e20076..e517af98896b 100644
--- a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/PetApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -121,8 +122,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -141,12 +142,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -174,8 +175,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
@@ -194,12 +195,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -252,7 +253,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/StoreApi.java
index be82f953d4f4..b096b1361c8e 100644
--- a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/UserApi.java
index f55834070d44..0a7d52d80442 100644
--- a/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/AnotherFakeApi.java b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/AnotherFakeApi.java
index bb2162592368..e2bad8139ca8 100644
--- a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/AnotherFakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/AnotherFakeApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/FakeApi.java b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/FakeApi.java
index 04a35d516085..d86473e41ad2 100644
--- a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/FakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/FakeApi.java
@@ -19,6 +19,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/FakeClassnameTestApi.java b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
index 839ed454cc63..40ab43f07138 100644
--- a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
+++ b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApi.java
index 1657bbc0d0df..2143006592ab 100644
--- a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -120,8 +121,8 @@ default Mono<ResponseEntity<Void>> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -159,8 +160,8 @@ default Mono<ResponseEntity<Flux<Pet>>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApiDelegate.java b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApiDelegate.java
index dca0f87bf721..b53ef4a0fa59 100644
--- a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApiDelegate.java
+++ b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApiDelegate.java
@@ -78,12 +78,12 @@ default Mono<ResponseEntity<Flux<Pet>>> findPetsByStatus(List<String> status,
         exchange.getResponse().setStatusCode(HttpStatus.NOT_IMPLEMENTED);
         for (MediaType mediaType : exchange.getRequest().getHeaders().getAccept()) {
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
@@ -109,12 +109,12 @@ default Mono<ResponseEntity<Flux<Pet>>> findPetsByTags(Set<String> tags,
         exchange.getResponse().setStatusCode(HttpStatus.NOT_IMPLEMENTED);
         for (MediaType mediaType : exchange.getRequest().getHeaders().getAccept()) {
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
@@ -144,7 +144,7 @@ default Mono<ResponseEntity<Pet>> getPetById(Long petId,
                 break;
             }
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
diff --git a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/StoreApi.java
index 61f14339f46b..2d4586d490d8 100644
--- a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/UserApi.java
index 69c0decc1dde..3666e0b62caa 100644
--- a/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-source/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/springboot-source/src/main/java/org/openapitools/api/PetApi.java
index fd146f2bc8f5..4fa05d41a4cc 100644
--- a/samples/openapi3/server/petstore/springboot-source/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/springboot-source/src/main/java/org/openapitools/api/PetApi.java
@@ -55,7 +55,7 @@ default ResponseEntity<Pet> addPet(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -106,12 +106,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -143,12 +143,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -184,7 +184,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/AnotherFakeApi.java b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/AnotherFakeApi.java
index 686658862e56..8e292d1b615f 100644
--- a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/AnotherFakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/AnotherFakeApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/FakeApi.java b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/FakeApi.java
index a3b5c32f92ca..a4ac45815563 100644
--- a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/FakeApi.java
+++ b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/FakeApi.java
@@ -19,6 +19,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/FakeClassnameTestApi.java b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
index 07f29752b7c4..64158a0141d9 100644
--- a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
+++ b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/PetApi.java
index 2d4bb84ba1d5..38da0e20b90f 100644
--- a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/PetApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -120,8 +121,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -140,12 +141,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -173,8 +174,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
@@ -193,12 +194,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -251,7 +252,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/StoreApi.java
index be82f953d4f4..b096b1361c8e 100644
--- a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/UserApi.java
index f55834070d44..0a7d52d80442 100644
--- a/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/PetApi.java b/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/PetApi.java
index e850a25c2e24..5defcf762f40 100644
--- a/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/PetApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -81,7 +82,7 @@ default ResponseEntity<Pet> addPet(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -140,8 +141,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -160,12 +161,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -193,8 +194,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
@@ -213,12 +214,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -271,7 +272,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/StoreApi.java b/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/StoreApi.java
index 5707f9167207..bb39e31baa0f 100644
--- a/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/UserApi.java b/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/UserApi.java
index b284540a8014..66eb5fcd6e97 100644
--- a/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/openapi3/server/petstore/springboot/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Controllers/PetApi.cs b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Controllers/PetApi.cs
index 982c1a6011df..1345e35aa1ea 100644
--- a/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore-3.0/src/Org.OpenAPITools/Controllers/PetApi.cs
@@ -49,7 +49,7 @@ public virtual IActionResult AddPet([FromBody]Pet pet)
             // return StatusCode(405);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
@@ -97,8 +97,8 @@ public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Requ
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -128,8 +128,8 @@ public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -163,7 +163,7 @@ public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]lo
             // return StatusCode(404);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
diff --git a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Controllers/PetApi.cs b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Controllers/PetApi.cs
index 982c1a6011df..1345e35aa1ea 100644
--- a/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore-3.1/src/Org.OpenAPITools/Controllers/PetApi.cs
@@ -49,7 +49,7 @@ public virtual IActionResult AddPet([FromBody]Pet pet)
             // return StatusCode(405);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
@@ -97,8 +97,8 @@ public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Requ
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -128,8 +128,8 @@ public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -163,7 +163,7 @@ public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]lo
             // return StatusCode(404);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
diff --git a/samples/server/petstore/aspnetcore-5.0/src/Org.OpenAPITools/Controllers/PetApi.cs b/samples/server/petstore/aspnetcore-5.0/src/Org.OpenAPITools/Controllers/PetApi.cs
index 982c1a6011df..1345e35aa1ea 100644
--- a/samples/server/petstore/aspnetcore-5.0/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore-5.0/src/Org.OpenAPITools/Controllers/PetApi.cs
@@ -49,7 +49,7 @@ public virtual IActionResult AddPet([FromBody]Pet pet)
             // return StatusCode(405);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
@@ -97,8 +97,8 @@ public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Requ
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -128,8 +128,8 @@ public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -163,7 +163,7 @@ public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]lo
             // return StatusCode(404);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
diff --git a/samples/server/petstore/aspnetcore-6.0-pocoModels/src/Org.OpenAPITools/Controllers/PetApi.cs b/samples/server/petstore/aspnetcore-6.0-pocoModels/src/Org.OpenAPITools/Controllers/PetApi.cs
index 982c1a6011df..1345e35aa1ea 100644
--- a/samples/server/petstore/aspnetcore-6.0-pocoModels/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore-6.0-pocoModels/src/Org.OpenAPITools/Controllers/PetApi.cs
@@ -49,7 +49,7 @@ public virtual IActionResult AddPet([FromBody]Pet pet)
             // return StatusCode(405);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
@@ -97,8 +97,8 @@ public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Requ
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -128,8 +128,8 @@ public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -163,7 +163,7 @@ public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]lo
             // return StatusCode(404);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
diff --git a/samples/server/petstore/aspnetcore-6.0-project4Models/src/Org.OpenAPITools/Controllers/PetApi.cs b/samples/server/petstore/aspnetcore-6.0-project4Models/src/Org.OpenAPITools/Controllers/PetApi.cs
index 982c1a6011df..1345e35aa1ea 100644
--- a/samples/server/petstore/aspnetcore-6.0-project4Models/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore-6.0-project4Models/src/Org.OpenAPITools/Controllers/PetApi.cs
@@ -49,7 +49,7 @@ public virtual IActionResult AddPet([FromBody]Pet pet)
             // return StatusCode(405);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
@@ -97,8 +97,8 @@ public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Requ
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -128,8 +128,8 @@ public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -163,7 +163,7 @@ public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]lo
             // return StatusCode(404);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
diff --git a/samples/server/petstore/aspnetcore-6.0/src/Org.OpenAPITools/Controllers/PetApi.cs b/samples/server/petstore/aspnetcore-6.0/src/Org.OpenAPITools/Controllers/PetApi.cs
index 982c1a6011df..1345e35aa1ea 100644
--- a/samples/server/petstore/aspnetcore-6.0/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore-6.0/src/Org.OpenAPITools/Controllers/PetApi.cs
@@ -49,7 +49,7 @@ public virtual IActionResult AddPet([FromBody]Pet pet)
             // return StatusCode(405);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
@@ -97,8 +97,8 @@ public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Requ
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -128,8 +128,8 @@ public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -163,7 +163,7 @@ public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]lo
             // return StatusCode(404);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
diff --git a/samples/server/petstore/aspnetcore/src/Org.OpenAPITools/Controllers/PetApi.cs b/samples/server/petstore/aspnetcore/src/Org.OpenAPITools/Controllers/PetApi.cs
index a97f11089446..cef258311dc9 100644
--- a/samples/server/petstore/aspnetcore/src/Org.OpenAPITools/Controllers/PetApi.cs
+++ b/samples/server/petstore/aspnetcore/src/Org.OpenAPITools/Controllers/PetApi.cs
@@ -86,8 +86,8 @@ public virtual IActionResult FindPetsByStatus([FromQuery (Name = "status")][Requ
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -117,8 +117,8 @@ public virtual IActionResult FindPetsByTags([FromQuery (Name = "tags")][Required
             //TODO: Uncomment the next line to return response 400 or use other options such as return this.NotFound(), return this.BadRequest(..), ...
             // return StatusCode(400);
             string exampleJson = null;
-            exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "[ {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}, {\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n} ]";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<List<Pet>>(exampleJson)
@@ -152,7 +152,7 @@ public virtual IActionResult GetPetById([FromRoute (Name = "petId")][Required]lo
             // return StatusCode(404);
             string exampleJson = null;
             exampleJson = "{\n  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],\n  \"name\" : \"doggie\",\n  \"id\" : 0,\n  \"category\" : {\n    \"name\" : \"name\",\n    \"id\" : 6\n  },\n  \"tags\" : [ {\n    \"name\" : \"name\",\n    \"id\" : 1\n  }, {\n    \"name\" : \"name\",\n    \"id\" : 1\n  } ],\n  \"status\" : \"available\"\n}";
-            exampleJson = "<Pet>\n  <id>123456789</id>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
+            exampleJson = "<Pet>\n  <id>123456789</id>\n  <Category>\n    <id>123456789</id>\n    <name>aeiou</name>\n  </Category>\n  <name>doggie</name>\n  <photoUrls>\n    <photoUrls>aeiou</photoUrls>\n  </photoUrls>\n  <tags>\n    <Tag>\n      <id>123456789</id>\n      <name>aeiou</name>\n    </Tag>\n  </tags>\n  <status>aeiou</status>\n</Pet>";
             
             var example = exampleJson != null
             ? JsonConvert.DeserializeObject<Pet>(exampleJson)
diff --git a/samples/server/petstore/java-camel/src/main/java/org/openapitools/api/PetApiRoutesImpl.java b/samples/server/petstore/java-camel/src/main/java/org/openapitools/api/PetApiRoutesImpl.java
index c07d1dc9f722..1e9390acd3ea 100644
--- a/samples/server/petstore/java-camel/src/main/java/org/openapitools/api/PetApiRoutesImpl.java
+++ b/samples/server/petstore/java-camel/src/main/java/org/openapitools/api/PetApiRoutesImpl.java
@@ -48,7 +48,7 @@ public void configure() throws Exception {
                     .log(LoggingLevel.INFO, "BODY TYPE: ${body.getClass().getName()}")
             .end()
             .log(LoggingLevel.INFO, "HEADERS: ${headers}")
-            .setBody(constant("[{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }]"))
+            .setBody(constant("[[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]]"))
             .unmarshal().json(JsonLibrary.Jackson, Pet[].class);
         /**
         GET /pet/findByTags : Finds Pets by tags
@@ -60,7 +60,7 @@ public void configure() throws Exception {
                     .log(LoggingLevel.INFO, "BODY TYPE: ${body.getClass().getName()}")
             .end()
             .log(LoggingLevel.INFO, "HEADERS: ${headers}")
-            .setBody(constant("[{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }]"))
+            .setBody(constant("[[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]]"))
             .unmarshal().json(JsonLibrary.Jackson, Pet[].class);
         /**
         GET /pet/{petId} : Find pet by ID
diff --git a/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/PetApi.kt b/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
index 0a4b29e2cabb..cce96c458768 100644
--- a/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
+++ b/samples/server/petstore/kotlin-server-modelMutable/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
@@ -49,7 +49,7 @@ fun Route.PetApi() {
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
         val exampleContentType = "application/json"
-            val exampleContentString = """{
+            val exampleContentString = """[ {
               "photoUrls" : [ "photoUrls", "photoUrls" ],
               "name" : "doggie",
               "id" : 0,
@@ -65,7 +65,23 @@ fun Route.PetApi() {
                 "id" : 1
               } ],
               "status" : "available"
-            }"""
+            }, {
+              "photoUrls" : [ "photoUrls", "photoUrls" ],
+              "name" : "doggie",
+              "id" : 0,
+              "category" : {
+                "name" : "name",
+                "id" : 6
+              },
+              "tags" : [ {
+                "name" : "name",
+                "id" : 1
+              }, {
+                "name" : "name",
+                "id" : 1
+              } ],
+              "status" : "available"
+            } ]"""
             
             when (exampleContentType) {
                 "application/json" -> call.respond(gson.fromJson(exampleContentString, empty::class.java))
@@ -80,7 +96,7 @@ fun Route.PetApi() {
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
         val exampleContentType = "application/json"
-            val exampleContentString = """{
+            val exampleContentString = """[ {
               "photoUrls" : [ "photoUrls", "photoUrls" ],
               "name" : "doggie",
               "id" : 0,
@@ -96,7 +112,23 @@ fun Route.PetApi() {
                 "id" : 1
               } ],
               "status" : "available"
-            }"""
+            }, {
+              "photoUrls" : [ "photoUrls", "photoUrls" ],
+              "name" : "doggie",
+              "id" : 0,
+              "category" : {
+                "name" : "name",
+                "id" : 6
+              },
+              "tags" : [ {
+                "name" : "name",
+                "id" : 1
+              }, {
+                "name" : "name",
+                "id" : 1
+              } ],
+              "status" : "available"
+            } ]"""
             
             when (exampleContentType) {
                 "application/json" -> call.respond(gson.fromJson(exampleContentString, empty::class.java))
diff --git a/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/PetApi.kt b/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
index 0a4b29e2cabb..cce96c458768 100644
--- a/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
+++ b/samples/server/petstore/kotlin-server/ktor/src/main/kotlin/org/openapitools/server/apis/PetApi.kt
@@ -49,7 +49,7 @@ fun Route.PetApi() {
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
         val exampleContentType = "application/json"
-            val exampleContentString = """{
+            val exampleContentString = """[ {
               "photoUrls" : [ "photoUrls", "photoUrls" ],
               "name" : "doggie",
               "id" : 0,
@@ -65,7 +65,23 @@ fun Route.PetApi() {
                 "id" : 1
               } ],
               "status" : "available"
-            }"""
+            }, {
+              "photoUrls" : [ "photoUrls", "photoUrls" ],
+              "name" : "doggie",
+              "id" : 0,
+              "category" : {
+                "name" : "name",
+                "id" : 6
+              },
+              "tags" : [ {
+                "name" : "name",
+                "id" : 1
+              }, {
+                "name" : "name",
+                "id" : 1
+              } ],
+              "status" : "available"
+            } ]"""
             
             when (exampleContentType) {
                 "application/json" -> call.respond(gson.fromJson(exampleContentString, empty::class.java))
@@ -80,7 +96,7 @@ fun Route.PetApi() {
         val principal = call.authentication.principal<OAuthAccessTokenResponse>()!!
         
         val exampleContentType = "application/json"
-            val exampleContentString = """{
+            val exampleContentString = """[ {
               "photoUrls" : [ "photoUrls", "photoUrls" ],
               "name" : "doggie",
               "id" : 0,
@@ -96,7 +112,23 @@ fun Route.PetApi() {
                 "id" : 1
               } ],
               "status" : "available"
-            }"""
+            }, {
+              "photoUrls" : [ "photoUrls", "photoUrls" ],
+              "name" : "doggie",
+              "id" : 0,
+              "category" : {
+                "name" : "name",
+                "id" : 6
+              },
+              "tags" : [ {
+                "name" : "name",
+                "id" : 1
+              }, {
+                "name" : "name",
+                "id" : 1
+              } ],
+              "status" : "available"
+            } ]"""
             
             when (exampleContentType) {
                 "application/json" -> call.respond(gson.fromJson(exampleContentString, empty::class.java))
diff --git a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt
index 520ec736778e..bb5ce07e2120 100644
--- a/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt
+++ b/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt
@@ -30,7 +30,7 @@ interface PetApiDelegate {
                     break
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    ApiUtil.setExampleResponse(request, "application/xml", "<Pet>  <id>123456789</id>  <name>doggie</name>  <photoUrls>    <photoUrls>aeiou</photoUrls>  </photoUrls>  <tags>  </tags>  <status>aeiou</status></Pet>")
+                    ApiUtil.setExampleResponse(request, "application/xml", "<Pet>  <id>123456789</id>  <Category>    <id>123456789</id>    <name>aeiou</name>  </Category>  <name>doggie</name>  <photoUrls>    <photoUrls>aeiou</photoUrls>  </photoUrls>  <tags>    <Tag>      <id>123456789</id>      <name>aeiou</name>    </Tag>  </tags>  <status>aeiou</status></Pet>")
                     break
                 }
             }
@@ -57,11 +57,11 @@ interface PetApiDelegate {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    ApiUtil.setExampleResponse(request, "application/json", "{  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],  \"name\" : \"doggie\",  \"id\" : 0,  \"category\" : {    \"name\" : \"name\",    \"id\" : 6  },  \"tags\" : [ {    \"name\" : \"name\",    \"id\" : 1  }, {    \"name\" : \"name\",    \"id\" : 1  } ],  \"status\" : \"available\"}")
+                    ApiUtil.setExampleResponse(request, "application/json", "[ {  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],  \"name\" : \"doggie\",  \"id\" : 0,  \"category\" : {    \"name\" : \"name\",    \"id\" : 6  },  \"tags\" : [ {    \"name\" : \"name\",    \"id\" : 1  }, {    \"name\" : \"name\",    \"id\" : 1  } ],  \"status\" : \"available\"}, {  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],  \"name\" : \"doggie\",  \"id\" : 0,  \"category\" : {    \"name\" : \"name\",    \"id\" : 6  },  \"tags\" : [ {    \"name\" : \"name\",    \"id\" : 1  }, {    \"name\" : \"name\",    \"id\" : 1  } ],  \"status\" : \"available\"} ]")
                     break
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    ApiUtil.setExampleResponse(request, "application/xml", "<Pet>  <id>123456789</id>  <name>doggie</name>  <photoUrls>    <photoUrls>aeiou</photoUrls>  </photoUrls>  <tags>  </tags>  <status>aeiou</status></Pet>")
+                    ApiUtil.setExampleResponse(request, "application/xml", "<Pet>  <id>123456789</id>  <Category>    <id>123456789</id>    <name>aeiou</name>  </Category>  <name>doggie</name>  <photoUrls>    <photoUrls>aeiou</photoUrls>  </photoUrls>  <tags>    <Tag>      <id>123456789</id>      <name>aeiou</name>    </Tag>  </tags>  <status>aeiou</status></Pet>")
                     break
                 }
             }
@@ -78,11 +78,11 @@ interface PetApiDelegate {
         getRequest().ifPresent { request ->
             for (mediaType in MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    ApiUtil.setExampleResponse(request, "application/json", "{  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],  \"name\" : \"doggie\",  \"id\" : 0,  \"category\" : {    \"name\" : \"name\",    \"id\" : 6  },  \"tags\" : [ {    \"name\" : \"name\",    \"id\" : 1  }, {    \"name\" : \"name\",    \"id\" : 1  } ],  \"status\" : \"available\"}")
+                    ApiUtil.setExampleResponse(request, "application/json", "[ {  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],  \"name\" : \"doggie\",  \"id\" : 0,  \"category\" : {    \"name\" : \"name\",    \"id\" : 6  },  \"tags\" : [ {    \"name\" : \"name\",    \"id\" : 1  }, {    \"name\" : \"name\",    \"id\" : 1  } ],  \"status\" : \"available\"}, {  \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ],  \"name\" : \"doggie\",  \"id\" : 0,  \"category\" : {    \"name\" : \"name\",    \"id\" : 6  },  \"tags\" : [ {    \"name\" : \"name\",    \"id\" : 1  }, {    \"name\" : \"name\",    \"id\" : 1  } ],  \"status\" : \"available\"} ]")
                     break
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    ApiUtil.setExampleResponse(request, "application/xml", "<Pet>  <id>123456789</id>  <name>doggie</name>  <photoUrls>    <photoUrls>aeiou</photoUrls>  </photoUrls>  <tags>  </tags>  <status>aeiou</status></Pet>")
+                    ApiUtil.setExampleResponse(request, "application/xml", "<Pet>  <id>123456789</id>  <Category>    <id>123456789</id>    <name>aeiou</name>  </Category>  <name>doggie</name>  <photoUrls>    <photoUrls>aeiou</photoUrls>  </photoUrls>  <tags>    <Tag>      <id>123456789</id>      <name>aeiou</name>    </Tag>  </tags>  <status>aeiou</status></Pet>")
                     break
                 }
             }
@@ -103,7 +103,7 @@ interface PetApiDelegate {
                     break
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    ApiUtil.setExampleResponse(request, "application/xml", "<Pet>  <id>123456789</id>  <name>doggie</name>  <photoUrls>    <photoUrls>aeiou</photoUrls>  </photoUrls>  <tags>  </tags>  <status>aeiou</status></Pet>")
+                    ApiUtil.setExampleResponse(request, "application/xml", "<Pet>  <id>123456789</id>  <Category>    <id>123456789</id>    <name>aeiou</name>  </Category>  <name>doggie</name>  <photoUrls>    <photoUrls>aeiou</photoUrls>  </photoUrls>  <tags>    <Tag>      <id>123456789</id>      <name>aeiou</name>    </Tag>  </tags>  <status>aeiou</status></Pet>")
                     break
                 }
             }
diff --git a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/AnotherFakeApi.java b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/AnotherFakeApi.java
index 1050d608775f..72b5e51b6956 100644
--- a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/AnotherFakeApi.java
+++ b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/AnotherFakeApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/FakeApi.java b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/FakeApi.java
index 5abf4cef7ac9..3718c18dcb03 100644
--- a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/FakeApi.java
+++ b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/FakeApi.java
@@ -19,6 +19,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/FakeClassnameTestApi.java b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
index ef3d03dd5fda..b2f75096ab8a 100644
--- a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
+++ b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/FakeClassnameTestApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/PetApi.java
index dc4be98ac14a..9529c5a6ad08 100644
--- a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/PetApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -110,8 +111,8 @@ ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -146,8 +147,8 @@ ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
diff --git a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/StoreApi.java b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/StoreApi.java
index a3ca817338b9..383a8e9ad696 100644
--- a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/StoreApi.java
+++ b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/UserApi.java b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/UserApi.java
index 546d8f2cb60f..f0c258bb212b 100644
--- a/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/UserApi.java
+++ b/samples/server/petstore/spring-boot-defaultInterface-unhandledException/src/main/java/org/openapitools/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/spring-boot-nullable-set/src/main/java/org/openapitools/api/NullableApi.java b/samples/server/petstore/spring-boot-nullable-set/src/main/java/org/openapitools/api/NullableApi.java
index 9ac6887f5454..a34db54ab7e2 100644
--- a/samples/server/petstore/spring-boot-nullable-set/src/main/java/org/openapitools/api/NullableApi.java
+++ b/samples/server/petstore/spring-boot-nullable-set/src/main/java/org/openapitools/api/NullableApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/spring-stubs/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/spring-stubs/src/main/java/org/openapitools/api/PetApi.java
index 2c9a6dcf5b79..4a0412c511ab 100644
--- a/samples/server/petstore/spring-stubs/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/spring-stubs/src/main/java/org/openapitools/api/PetApi.java
@@ -138,12 +138,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -193,12 +193,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -249,7 +249,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/PetApi.java
index 60ccea3635bc..e1d9ac244757 100644
--- a/samples/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/springboot-beanvalidation-no-nullable/src/main/java/org/openapitools/api/PetApi.java
@@ -143,12 +143,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -198,12 +198,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -254,7 +254,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/api/PetApi.java
index 60ccea3635bc..e1d9ac244757 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/api/PetApi.java
@@ -143,12 +143,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -198,12 +198,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -254,7 +254,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/api/PetApiDelegate.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/api/PetApiDelegate.java
index 1f97f43b6db8..1e9ad7f94f4f 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/api/PetApiDelegate.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/api/PetApiDelegate.java
@@ -66,12 +66,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(List<String> status) {
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -96,12 +96,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(Set<String> tags) {
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -130,7 +130,7 @@ default ResponseEntity<Pet> getPetById(Long petId) {
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApiDelegate.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApiDelegate.java
index 1f97f43b6db8..1e9ad7f94f4f 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApiDelegate.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/api/PetApiDelegate.java
@@ -66,12 +66,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(List<String> status) {
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -96,12 +96,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(Set<String> tags) {
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -130,7 +130,7 @@ default ResponseEntity<Pet> getPetById(Long petId) {
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-implicitHeaders-annotationLibrary/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/springboot-implicitHeaders-annotationLibrary/src/main/java/org/openapitools/api/PetApi.java
index 9b66d42d3563..78108702158a 100644
--- a/samples/server/petstore/springboot-implicitHeaders-annotationLibrary/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/springboot-implicitHeaders-annotationLibrary/src/main/java/org/openapitools/api/PetApi.java
@@ -55,7 +55,7 @@ default ResponseEntity<Pet> addPet(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -104,12 +104,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -141,12 +141,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -182,7 +182,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/PetApi.java
index c79ba12a30f2..ecec4d68cbb5 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/api/PetApi.java
@@ -144,12 +144,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -199,12 +199,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -255,7 +255,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApiDelegate.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApiDelegate.java
index ebd80762c879..0c9899164aed 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApiDelegate.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/api/PetApiDelegate.java
@@ -79,12 +79,12 @@ default Mono<ResponseEntity<Flux<Pet>>> findPetsByStatus(List<String> status,
         exchange.getResponse().setStatusCode(HttpStatus.NOT_IMPLEMENTED);
         for (MediaType mediaType : exchange.getRequest().getHeaders().getAccept()) {
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
@@ -110,12 +110,12 @@ default Mono<ResponseEntity<Flux<Pet>>> findPetsByTags(Set<String> tags,
         exchange.getResponse().setStatusCode(HttpStatus.NOT_IMPLEMENTED);
         for (MediaType mediaType : exchange.getRequest().getHeaders().getAccept()) {
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
@@ -145,7 +145,7 @@ default Mono<ResponseEntity<Pet>> getPetById(Long petId,
                 break;
             }
             if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                 result = ApiUtil.getExampleResponse(exchange, mediaType, exampleString);
                 break;
             }
diff --git a/samples/server/petstore/springboot-spring-pageable-delegatePattern-without-j8/src/main/java/org/openapitools/api/PetApiDelegate.java b/samples/server/petstore/springboot-spring-pageable-delegatePattern-without-j8/src/main/java/org/openapitools/api/PetApiDelegate.java
index e14cc23e791d..ec9d4d2e7435 100644
--- a/samples/server/petstore/springboot-spring-pageable-delegatePattern-without-j8/src/main/java/org/openapitools/api/PetApiDelegate.java
+++ b/samples/server/petstore/springboot-spring-pageable-delegatePattern-without-j8/src/main/java/org/openapitools/api/PetApiDelegate.java
@@ -67,12 +67,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(List<String> status, final Pa
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -97,12 +97,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(List<String> tags, final Pageab
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -131,7 +131,7 @@ default ResponseEntity<Pet> getPetById(Long petId) {
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-spring-pageable-delegatePattern/src/main/java/org/openapitools/api/PetApiDelegate.java b/samples/server/petstore/springboot-spring-pageable-delegatePattern/src/main/java/org/openapitools/api/PetApiDelegate.java
index e14cc23e791d..ec9d4d2e7435 100644
--- a/samples/server/petstore/springboot-spring-pageable-delegatePattern/src/main/java/org/openapitools/api/PetApiDelegate.java
+++ b/samples/server/petstore/springboot-spring-pageable-delegatePattern/src/main/java/org/openapitools/api/PetApiDelegate.java
@@ -67,12 +67,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(List<String> status, final Pa
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -97,12 +97,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(List<String> tags, final Pageab
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -131,7 +131,7 @@ default ResponseEntity<Pet> getPetById(Long petId) {
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-spring-pageable-without-j8/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/springboot-spring-pageable-without-j8/src/main/java/org/openapitools/api/PetApi.java
index f6c886ac94c8..ddee11502bf7 100644
--- a/samples/server/petstore/springboot-spring-pageable-without-j8/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/springboot-spring-pageable-without-j8/src/main/java/org/openapitools/api/PetApi.java
@@ -145,12 +145,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -201,12 +201,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -257,7 +257,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-spring-pageable/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/springboot-spring-pageable/src/main/java/org/openapitools/api/PetApi.java
index f6c886ac94c8..ddee11502bf7 100644
--- a/samples/server/petstore/springboot-spring-pageable/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/springboot-spring-pageable/src/main/java/org/openapitools/api/PetApi.java
@@ -145,12 +145,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -201,12 +201,12 @@ default ResponseEntity<List<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -257,7 +257,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/PetApi.java
index 6d85c297c392..8ba2f377b146 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/api/PetApi.java
@@ -143,12 +143,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -198,12 +198,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -254,7 +254,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/AnotherFakeApi.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/AnotherFakeApi.java
index fbe25a65a5ec..f3902a094da6 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/AnotherFakeApi.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/AnotherFakeApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/FakeApi.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/FakeApi.java
index a53e2dfbd59c..281b5a0b13c4 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/FakeApi.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/FakeApi.java
@@ -19,6 +19,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/FakeClassnameTestApi.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/FakeClassnameTestApi.java
index 0d1d1c09a715..3bbab83efc55 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/FakeClassnameTestApi.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/FakeClassnameTestApi.java
@@ -9,6 +9,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/PetApi.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/PetApi.java
index c272973742da..d8916def975e 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/PetApi.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/PetApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
@@ -126,8 +127,8 @@ default ResponseEntity<Void> deletePet(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid status value")
         },
@@ -146,12 +147,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -180,8 +181,8 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         tags = { "pet" },
         responses = {
             @ApiResponse(responseCode = "200", description = "successful operation", content = {
-                @Content(mediaType = "application/xml", schema = @Schema(implementation = Pet.class)),
-                @Content(mediaType = "application/json", schema = @Schema(implementation = Pet.class))
+                @Content(mediaType = "application/xml", array = @ArraySchema(schema = @Schema(implementation = Pet.class))),
+                @Content(mediaType = "application/json", array = @ArraySchema(schema = @Schema(implementation = Pet.class)))
             }),
             @ApiResponse(responseCode = "400", description = "Invalid tag value")
         },
@@ -200,12 +201,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -259,7 +260,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/StoreApi.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/StoreApi.java
index 355a3546e3d7..2fe6a209a8b9 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/StoreApi.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/StoreApi.java
@@ -10,6 +10,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/UserApi.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/UserApi.java
index 580325ba4f71..6cd881b02d55 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/UserApi.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/api/UserApi.java
@@ -11,6 +11,7 @@
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.media.ArraySchema;
 import io.swagger.v3.oas.annotations.media.Content;
 import io.swagger.v3.oas.annotations.media.Schema;
 import io.swagger.v3.oas.annotations.responses.ApiResponse;
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/api/PetApi.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/api/PetApi.java
index 60ccea3635bc..e1d9ac244757 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/api/PetApi.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/api/PetApi.java
@@ -143,12 +143,12 @@ default ResponseEntity<List<Pet>> findPetsByStatus(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -198,12 +198,12 @@ default ResponseEntity<Set<Pet>> findPetsByTags(
         getRequest().ifPresent(request -> {
             for (MediaType mediaType: MediaType.parseMediaTypes(request.getHeader("Accept"))) {
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/json"))) {
-                    String exampleString = "{ \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }";
+                    String exampleString = "[ { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" }, { \"photoUrls\" : [ \"photoUrls\", \"photoUrls\" ], \"name\" : \"doggie\", \"id\" : 0, \"category\" : { \"name\" : \"default-name\", \"id\" : 6 }, \"tags\" : [ { \"name\" : \"name\", \"id\" : 1 }, { \"name\" : \"name\", \"id\" : 1 } ], \"status\" : \"available\" } ]";
                     ApiUtil.setExampleResponse(request, "application/json", exampleString);
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }
@@ -254,7 +254,7 @@ default ResponseEntity<Pet> getPetById(
                     break;
                 }
                 if (mediaType.isCompatibleWith(MediaType.valueOf("application/xml"))) {
-                    String exampleString = "<Pet> <id>123456789</id> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> </tags> <status>aeiou</status> </Pet>";
+                    String exampleString = "<Pet> <id>123456789</id> <Category> <id>123456789</id> <name>aeiou</name> </Category> <name>doggie</name> <photoUrls> <photoUrls>aeiou</photoUrls> </photoUrls> <tags> <Tag> <id>123456789</id> <name>aeiou</name> </Tag> </tags> <status>aeiou</status> </Pet>";
                     ApiUtil.setExampleResponse(request, "application/xml", exampleString);
                     break;
                 }