diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
index 24803f481904..21e0c4cf818d 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/PythonClientCodegen.java
@@ -614,14 +614,6 @@ public String toDefaultValue(Schema p) {
                 else
                     return "True";
             }
-            // include fallback to example, default defined as server only
-            // example is not defined as server only
-            if (p.getExample() != null) {
-                if (Boolean.valueOf(p.getExample().toString()) == false)
-                    return "False";
-                else
-                    return "True";
-            }
         } else if (ModelUtils.isDateSchema(p)) {
             // TODO
         } else if (ModelUtils.isDateTimeSchema(p)) {
@@ -630,10 +622,6 @@ public String toDefaultValue(Schema p) {
             if (p.getDefault() != null) {
                 return p.getDefault().toString();
             }
-            // default numbers are not yet returned by v2 spec openAPI results
-            // https://github.com/swagger-api/swagger-parser/issues/971
-            // include fallback to example, default defined as server only
-            // example is not defined as server only
             if (p.getExample() != null) {
                 return p.getExample().toString();
             }
@@ -641,13 +629,6 @@ public String toDefaultValue(Schema p) {
             if (p.getDefault() != null) {
                 return p.getDefault().toString();
             }
-            // default integers are not yet returned by v2 spec openAPI results
-            // https://github.com/swagger-api/swagger-parser/issues/971
-            // include fallback to example, default defined as server only
-            // example is not defined as server only
-            if (p.getExample() != null) {
-                return p.getExample().toString();
-            }
         } else if (ModelUtils.isStringSchema(p)) {
             if (p.getDefault() != null) {
                 if (Pattern.compile("\r\n|\r|\n").matcher((String) p.getDefault()).find())
@@ -655,23 +636,10 @@ public String toDefaultValue(Schema p) {
                 else
                     return "'" + p.getDefault() + "'";
             }
-            // include fallback to example, default defined as server only
-            // example is not defined as server only
-            if (p.getExample() != null) {
-                if (Pattern.compile("\r\n|\r|\n").matcher((String) p.getExample()).find())
-                    return "'''" + p.getExample() + "'''";
-                else
-                    return "'" + p.getExample() + "'";
-            }
         } else if (ModelUtils.isArraySchema(p)) {
             if (p.getDefault() != null) {
                 return p.getDefault().toString();
             }
-            // include fallback to example, default defined as server only
-            // example is not defined as server only
-            if (p.getExample() != null) {
-                return p.getExample().toString();
-            }
         }
 
         return null;
diff --git a/modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml b/modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml
index 835f696d0ff4..2de23983ffb3 100644
--- a/modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml
+++ b/modules/openapi-generator/src/test/resources/2_0/petstore-with-fake-endpoints-models-for-testing.yaml
@@ -1344,6 +1344,7 @@ definitions:
       uuid:
         type: string
         format: uuid
+        example: 72f98069-206d-4f12-9f12-3d1e525a8e84
       password:
         type: string
         format: password
diff --git a/modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing.yaml b/modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing.yaml
index 65c9be07837b..4890407bacb1 100644
--- a/modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing.yaml
+++ b/modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing.yaml
@@ -1373,6 +1373,7 @@ components:
         uuid:
           type: string
           format: uuid
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
         password:
           type: string
           format: password
diff --git a/samples/client/petstore/go/go-petstore/api/openapi.yaml b/samples/client/petstore/go/go-petstore/api/openapi.yaml
index 6ebfe6eae1a6..2b13b056b955 100644
--- a/samples/client/petstore/go/go-petstore/api/openapi.yaml
+++ b/samples/client/petstore/go/go-petstore/api/openapi.yaml
@@ -1422,6 +1422,7 @@ components:
           format: date-time
           type: string
         uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
           format: uuid
           type: string
         password:
diff --git a/samples/client/petstore/haskell-http-client/openapi.yaml b/samples/client/petstore/haskell-http-client/openapi.yaml
index 6ebfe6eae1a6..2b13b056b955 100644
--- a/samples/client/petstore/haskell-http-client/openapi.yaml
+++ b/samples/client/petstore/haskell-http-client/openapi.yaml
@@ -1422,6 +1422,7 @@ components:
           format: date-time
           type: string
         uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
           format: uuid
           type: string
         password:
diff --git a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FormatTest.java
index b601d282a764..ef62e9b33c27 100644
--- a/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/feign/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FormatTest.java
index b601d282a764..ef62e9b33c27 100644
--- a/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/feign10x/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FormatTest.java
index b601d282a764..ef62e9b33c27 100644
--- a/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/google-api-client/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FormatTest.java
index b601d282a764..ef62e9b33c27 100644
--- a/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey1/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FormatTest.java
index ab9b82050361..29de7da0c526 100644
--- a/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2-java6/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -286,7 +286,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java
index c7baf149df5e..8a678061b2f1 100644
--- a/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2-java8/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FormatTest.java
index b601d282a764..ef62e9b33c27 100644
--- a/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/jersey2/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/model/FormatTest.java
index 935f4ade8b5c..48420300c825 100644
--- a/samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/okhttp-gson-parcelableModel/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -307,7 +307,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/model/FormatTest.java
index 499201bba7bc..07a6e25ae52a 100644
--- a/samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/okhttp-gson/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -303,7 +303,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/rest-assured/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/rest-assured/src/main/java/org/openapitools/client/model/FormatTest.java
index 499201bba7bc..07a6e25ae52a 100644
--- a/samples/client/petstore/java/rest-assured/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/rest-assured/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -303,7 +303,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FormatTest.java
index b601d282a764..ef62e9b33c27 100644
--- a/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/resteasy/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FormatTest.java
index 4510c02d52e1..7bdc2afc9a4f 100644
--- a/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/resttemplate-withXml/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -318,7 +318,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FormatTest.java
index b601d282a764..ef62e9b33c27 100644
--- a/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/resttemplate/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/retrofit/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit/src/main/java/org/openapitools/client/model/FormatTest.java
index 23f91ae8ed0c..403b2ff5e6ac 100644
--- a/samples/client/petstore/java/retrofit/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -303,7 +303,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FormatTest.java
index b26c3ba3c2ad..7f7a81441a94 100644
--- a/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2-play24/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -297,7 +297,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
   **/
   @Valid
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FormatTest.java
index 55e02037fe00..3bc23ceafa5b 100644
--- a/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2-play25/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -297,7 +297,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
   **/
   @Valid
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FormatTest.java
index 55e02037fe00..3bc23ceafa5b 100644
--- a/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2-play26/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -297,7 +297,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
   **/
   @Valid
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/retrofit2/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2/src/main/java/org/openapitools/client/model/FormatTest.java
index 499201bba7bc..07a6e25ae52a 100644
--- a/samples/client/petstore/java/retrofit2/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -303,7 +303,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/retrofit2rx/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2rx/src/main/java/org/openapitools/client/model/FormatTest.java
index 499201bba7bc..07a6e25ae52a 100644
--- a/samples/client/petstore/java/retrofit2rx/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2rx/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -303,7 +303,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/retrofit2rx2/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/retrofit2rx2/src/main/java/org/openapitools/client/model/FormatTest.java
index 499201bba7bc..07a6e25ae52a 100644
--- a/samples/client/petstore/java/retrofit2rx2/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/retrofit2rx2/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -303,7 +303,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FormatTest.java
index f3e785d92cb9..b26918ae74c7 100644
--- a/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/vertx/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FormatTest.java b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FormatTest.java
index c7baf149df5e..8a678061b2f1 100644
--- a/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FormatTest.java
+++ b/samples/client/petstore/java/webclient/src/main/java/org/openapitools/client/model/FormatTest.java
@@ -287,7 +287,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   **/
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   public UUID getUuid() {
     return uuid;
   }
diff --git a/samples/client/petstore/python/docs/Pet.md b/samples/client/petstore/python/docs/Pet.md
index f9ea079075d1..9e15090300f8 100644
--- a/samples/client/petstore/python/docs/Pet.md
+++ b/samples/client/petstore/python/docs/Pet.md
@@ -5,7 +5,7 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **id** | **int** |  | [optional] 
 **category** | [**Category**](Category.md) |  | [optional] 
-**name** | **str** |  | [default to 'doggie']
+**name** | **str** |  | 
 **photo_urls** | **list[str]** |  | 
 **tags** | [**list[Tag]**](Tag.md) |  | [optional] 
 **status** | **str** | pet status in the store | [optional] 
diff --git a/samples/client/petstore/python/docs/TypeHolderExample.md b/samples/client/petstore/python/docs/TypeHolderExample.md
index 1a1535f4dee3..844b1a394c67 100644
--- a/samples/client/petstore/python/docs/TypeHolderExample.md
+++ b/samples/client/petstore/python/docs/TypeHolderExample.md
@@ -3,11 +3,11 @@
 ## Properties
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**string_item** | **str** |  | [default to 'what']
+**string_item** | **str** |  | 
 **number_item** | **float** |  | [default to 1.234]
-**integer_item** | **int** |  | [default to -2]
-**bool_item** | **bool** |  | [default to True]
-**array_item** | **list[int]** |  | [default to [0, 1, 2, 3]]
+**integer_item** | **int** |  | 
+**bool_item** | **bool** |  | 
+**array_item** | **list[int]** |  | 
 
 [[Back to Model list]](../README.md#documentation-for-models) [[Back to API list]](../README.md#documentation-for-api-endpoints) [[Back to README]](../README.md)
 
diff --git a/samples/client/petstore/python/docs/XmlItem.md b/samples/client/petstore/python/docs/XmlItem.md
index 929e09ef5294..e389f5a06c0f 100644
--- a/samples/client/petstore/python/docs/XmlItem.md
+++ b/samples/client/petstore/python/docs/XmlItem.md
@@ -3,33 +3,33 @@
 ## Properties
 Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
-**attribute_string** | **str** |  | [optional] [default to 'string']
+**attribute_string** | **str** |  | [optional] 
 **attribute_number** | **float** |  | [optional] [default to 1.234]
-**attribute_integer** | **int** |  | [optional] [default to -2]
-**attribute_boolean** | **bool** |  | [optional] [default to True]
+**attribute_integer** | **int** |  | [optional] 
+**attribute_boolean** | **bool** |  | [optional] 
 **wrapped_array** | **list[int]** |  | [optional] 
-**name_string** | **str** |  | [optional] [default to 'string']
+**name_string** | **str** |  | [optional] 
 **name_number** | **float** |  | [optional] [default to 1.234]
-**name_integer** | **int** |  | [optional] [default to -2]
-**name_boolean** | **bool** |  | [optional] [default to True]
+**name_integer** | **int** |  | [optional] 
+**name_boolean** | **bool** |  | [optional] 
 **name_array** | **list[int]** |  | [optional] 
 **name_wrapped_array** | **list[int]** |  | [optional] 
-**prefix_string** | **str** |  | [optional] [default to 'string']
+**prefix_string** | **str** |  | [optional] 
 **prefix_number** | **float** |  | [optional] [default to 1.234]
-**prefix_integer** | **int** |  | [optional] [default to -2]
-**prefix_boolean** | **bool** |  | [optional] [default to True]
+**prefix_integer** | **int** |  | [optional] 
+**prefix_boolean** | **bool** |  | [optional] 
 **prefix_array** | **list[int]** |  | [optional] 
 **prefix_wrapped_array** | **list[int]** |  | [optional] 
-**namespace_string** | **str** |  | [optional] [default to 'string']
+**namespace_string** | **str** |  | [optional] 
 **namespace_number** | **float** |  | [optional] [default to 1.234]
-**namespace_integer** | **int** |  | [optional] [default to -2]
-**namespace_boolean** | **bool** |  | [optional] [default to True]
+**namespace_integer** | **int** |  | [optional] 
+**namespace_boolean** | **bool** |  | [optional] 
 **namespace_array** | **list[int]** |  | [optional] 
 **namespace_wrapped_array** | **list[int]** |  | [optional] 
-**prefix_ns_string** | **str** |  | [optional] [default to 'string']
+**prefix_ns_string** | **str** |  | [optional] 
 **prefix_ns_number** | **float** |  | [optional] [default to 1.234]
-**prefix_ns_integer** | **int** |  | [optional] [default to -2]
-**prefix_ns_boolean** | **bool** |  | [optional] [default to True]
+**prefix_ns_integer** | **int** |  | [optional] 
+**prefix_ns_boolean** | **bool** |  | [optional] 
 **prefix_ns_array** | **list[int]** |  | [optional] 
 **prefix_ns_wrapped_array** | **list[int]** |  | [optional] 
 
diff --git a/samples/client/petstore/python/petstore_api/models/pet.py b/samples/client/petstore/python/petstore_api/models/pet.py
index 3183f60c7971..d3c412f4a82b 100644
--- a/samples/client/petstore/python/petstore_api/models/pet.py
+++ b/samples/client/petstore/python/petstore_api/models/pet.py
@@ -48,7 +48,7 @@ class Pet(object):
         'status': 'status'
     }
 
-    def __init__(self, id=None, category=None, name='doggie', photo_urls=None, tags=None, status=None):  # noqa: E501
+    def __init__(self, id=None, category=None, name=None, photo_urls=None, tags=None, status=None):  # noqa: E501
         """Pet - a model defined in OpenAPI"""  # noqa: E501
 
         self._id = None
diff --git a/samples/client/petstore/python/petstore_api/models/type_holder_example.py b/samples/client/petstore/python/petstore_api/models/type_holder_example.py
index 573354ab4d6e..dd4cd8cf202a 100644
--- a/samples/client/petstore/python/petstore_api/models/type_holder_example.py
+++ b/samples/client/petstore/python/petstore_api/models/type_holder_example.py
@@ -46,7 +46,7 @@ class TypeHolderExample(object):
         'array_item': 'array_item'
     }
 
-    def __init__(self, string_item='what', number_item=1.234, integer_item=-2, bool_item=True, array_item=[0, 1, 2, 3]):  # noqa: E501
+    def __init__(self, string_item=None, number_item=1.234, integer_item=None, bool_item=None, array_item=None):  # noqa: E501
         """TypeHolderExample - a model defined in OpenAPI"""  # noqa: E501
 
         self._string_item = None
diff --git a/samples/client/petstore/python/petstore_api/models/xml_item.py b/samples/client/petstore/python/petstore_api/models/xml_item.py
index 28e6ff376770..f3b3782de433 100644
--- a/samples/client/petstore/python/petstore_api/models/xml_item.py
+++ b/samples/client/petstore/python/petstore_api/models/xml_item.py
@@ -94,7 +94,7 @@ class XmlItem(object):
         'prefix_ns_wrapped_array': 'prefix_ns_wrapped_array'
     }
 
-    def __init__(self, attribute_string='string', attribute_number=1.234, attribute_integer=-2, attribute_boolean=True, wrapped_array=None, name_string='string', name_number=1.234, name_integer=-2, name_boolean=True, name_array=None, name_wrapped_array=None, prefix_string='string', prefix_number=1.234, prefix_integer=-2, prefix_boolean=True, prefix_array=None, prefix_wrapped_array=None, namespace_string='string', namespace_number=1.234, namespace_integer=-2, namespace_boolean=True, namespace_array=None, namespace_wrapped_array=None, prefix_ns_string='string', prefix_ns_number=1.234, prefix_ns_integer=-2, prefix_ns_boolean=True, prefix_ns_array=None, prefix_ns_wrapped_array=None):  # noqa: E501
+    def __init__(self, attribute_string=None, attribute_number=1.234, attribute_integer=None, attribute_boolean=None, wrapped_array=None, name_string=None, name_number=1.234, name_integer=None, name_boolean=None, name_array=None, name_wrapped_array=None, prefix_string=None, prefix_number=1.234, prefix_integer=None, prefix_boolean=None, prefix_array=None, prefix_wrapped_array=None, namespace_string=None, namespace_number=1.234, namespace_integer=None, namespace_boolean=None, namespace_array=None, namespace_wrapped_array=None, prefix_ns_string=None, prefix_ns_number=1.234, prefix_ns_integer=None, prefix_ns_boolean=None, prefix_ns_array=None, prefix_ns_wrapped_array=None):  # noqa: E501
         """XmlItem - a model defined in OpenAPI"""  # noqa: E501
 
         self._attribute_string = None
diff --git a/samples/client/petstore/python/test/test_type_holder_example.py b/samples/client/petstore/python/test/test_type_holder_example.py
index 64765f26d6ce..7a2621494857 100644
--- a/samples/client/petstore/python/test/test_type_holder_example.py
+++ b/samples/client/petstore/python/test/test_type_holder_example.py
@@ -30,12 +30,9 @@ def tearDown(self):
 
     def testTypeHolderExample(self):
         """Test TypeHolderExample"""
-        model = TypeHolderExample()
-        self.assertEqual(model.string_item, 'what')
-        self.assertEqual(model.number_item, 1.234)
-        self.assertEqual(model.integer_item, -2)
-        self.assertEqual(model.bool_item, True)
-        self.assertEqual(model.array_item, [0, 1, 2, 3])
+        # FIXME: construct object with mandatory attributes with example values
+        # model = petstore_api.models.type_holder_example.TypeHolderExample()  # noqa: E501
+        pass
 
 
 if __name__ == '__main__':
diff --git a/samples/openapi3/client/petstore/python/docs/Pet.md b/samples/openapi3/client/petstore/python/docs/Pet.md
index f9ea079075d1..9e15090300f8 100644
--- a/samples/openapi3/client/petstore/python/docs/Pet.md
+++ b/samples/openapi3/client/petstore/python/docs/Pet.md
@@ -5,7 +5,7 @@ Name | Type | Description | Notes
 ------------ | ------------- | ------------- | -------------
 **id** | **int** |  | [optional] 
 **category** | [**Category**](Category.md) |  | [optional] 
-**name** | **str** |  | [default to 'doggie']
+**name** | **str** |  | 
 **photo_urls** | **list[str]** |  | 
 **tags** | [**list[Tag]**](Tag.md) |  | [optional] 
 **status** | **str** | pet status in the store | [optional] 
diff --git a/samples/openapi3/client/petstore/python/petstore_api/models/pet.py b/samples/openapi3/client/petstore/python/petstore_api/models/pet.py
index 3183f60c7971..d3c412f4a82b 100644
--- a/samples/openapi3/client/petstore/python/petstore_api/models/pet.py
+++ b/samples/openapi3/client/petstore/python/petstore_api/models/pet.py
@@ -48,7 +48,7 @@ class Pet(object):
         'status': 'status'
     }
 
-    def __init__(self, id=None, category=None, name='doggie', photo_urls=None, tags=None, status=None):  # noqa: E501
+    def __init__(self, id=None, category=None, name=None, photo_urls=None, tags=None, status=None):  # noqa: E501
         """Pet - a model defined in OpenAPI"""  # noqa: E501
 
         self._id = None
diff --git a/samples/server/petstore/jaxrs-cxf/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs-cxf/src/gen/java/org/openapitools/model/FormatTest.java
index 2849ff20ae81..970e4b2ebedb 100644
--- a/samples/server/petstore/jaxrs-cxf/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs-cxf/src/gen/java/org/openapitools/model/FormatTest.java
@@ -54,7 +54,7 @@ public class FormatTest  {
   @ApiModelProperty(value = "")
   private Date dateTime;
 
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   private UUID uuid;
 
   @ApiModelProperty(required = true, value = "")
diff --git a/samples/server/petstore/jaxrs-datelib-j8/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs-datelib-j8/src/gen/java/org/openapitools/model/FormatTest.java
index 1052805de98e..9c36d26bf98c 100644
--- a/samples/server/petstore/jaxrs-datelib-j8/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs-datelib-j8/src/gen/java/org/openapitools/model/FormatTest.java
@@ -314,7 +314,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
    **/
   @JsonProperty("uuid")
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   
   public UUID getUuid() {
     return uuid;
diff --git a/samples/server/petstore/jaxrs-jersey/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs-jersey/src/gen/java/org/openapitools/model/FormatTest.java
index 6cb076965256..7d6362e23b2b 100644
--- a/samples/server/petstore/jaxrs-jersey/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs-jersey/src/gen/java/org/openapitools/model/FormatTest.java
@@ -318,7 +318,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
    **/
   @JsonProperty("uuid")
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   
   public UUID getUuid() {
     return uuid;
diff --git a/samples/server/petstore/jaxrs-spec-interface/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs-spec-interface/src/gen/java/org/openapitools/model/FormatTest.java
index 800fe24ff924..a7b9130b851b 100644
--- a/samples/server/petstore/jaxrs-spec-interface/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs-spec-interface/src/gen/java/org/openapitools/model/FormatTest.java
@@ -243,7 +243,7 @@ public FormatTest uuid(UUID uuid) {
   }
 
   
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   @JsonProperty("uuid")
   public UUID getUuid() {
     return uuid;
diff --git a/samples/server/petstore/jaxrs-spec-interface/src/main/openapi/openapi.yaml b/samples/server/petstore/jaxrs-spec-interface/src/main/openapi/openapi.yaml
index 6bcd2b1a9b63..e19bfe47ee0f 100644
--- a/samples/server/petstore/jaxrs-spec-interface/src/main/openapi/openapi.yaml
+++ b/samples/server/petstore/jaxrs-spec-interface/src/main/openapi/openapi.yaml
@@ -1494,6 +1494,7 @@ components:
           format: date-time
           type: string
         uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
           format: uuid
           type: string
         password:
diff --git a/samples/server/petstore/jaxrs-spec/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs-spec/src/gen/java/org/openapitools/model/FormatTest.java
index 800fe24ff924..a7b9130b851b 100644
--- a/samples/server/petstore/jaxrs-spec/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs-spec/src/gen/java/org/openapitools/model/FormatTest.java
@@ -243,7 +243,7 @@ public FormatTest uuid(UUID uuid) {
   }
 
   
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   @JsonProperty("uuid")
   public UUID getUuid() {
     return uuid;
diff --git a/samples/server/petstore/jaxrs-spec/src/main/openapi/openapi.yaml b/samples/server/petstore/jaxrs-spec/src/main/openapi/openapi.yaml
index 6bcd2b1a9b63..e19bfe47ee0f 100644
--- a/samples/server/petstore/jaxrs-spec/src/main/openapi/openapi.yaml
+++ b/samples/server/petstore/jaxrs-spec/src/main/openapi/openapi.yaml
@@ -1494,6 +1494,7 @@ components:
           format: date-time
           type: string
         uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
           format: uuid
           type: string
         password:
diff --git a/samples/server/petstore/jaxrs/jersey1-useTags/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs/jersey1-useTags/src/gen/java/org/openapitools/model/FormatTest.java
index 5f60f9219ac3..41c3e2f15e10 100644
--- a/samples/server/petstore/jaxrs/jersey1-useTags/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs/jersey1-useTags/src/gen/java/org/openapitools/model/FormatTest.java
@@ -312,7 +312,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
    **/
   @JsonProperty("uuid")
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   
   public UUID getUuid() {
     return uuid;
diff --git a/samples/server/petstore/jaxrs/jersey1/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs/jersey1/src/gen/java/org/openapitools/model/FormatTest.java
index 5f60f9219ac3..41c3e2f15e10 100644
--- a/samples/server/petstore/jaxrs/jersey1/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs/jersey1/src/gen/java/org/openapitools/model/FormatTest.java
@@ -312,7 +312,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
    **/
   @JsonProperty("uuid")
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   
   public UUID getUuid() {
     return uuid;
diff --git a/samples/server/petstore/jaxrs/jersey2-useTags/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs/jersey2-useTags/src/gen/java/org/openapitools/model/FormatTest.java
index 5f60f9219ac3..41c3e2f15e10 100644
--- a/samples/server/petstore/jaxrs/jersey2-useTags/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs/jersey2-useTags/src/gen/java/org/openapitools/model/FormatTest.java
@@ -312,7 +312,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
    **/
   @JsonProperty("uuid")
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   
   public UUID getUuid() {
     return uuid;
diff --git a/samples/server/petstore/jaxrs/jersey2/src/gen/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/jaxrs/jersey2/src/gen/java/org/openapitools/model/FormatTest.java
index 5f60f9219ac3..41c3e2f15e10 100644
--- a/samples/server/petstore/jaxrs/jersey2/src/gen/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/jaxrs/jersey2/src/gen/java/org/openapitools/model/FormatTest.java
@@ -312,7 +312,7 @@ public FormatTest uuid(UUID uuid) {
    * @return uuid
    **/
   @JsonProperty("uuid")
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
   
   public UUID getUuid() {
     return uuid;
diff --git a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FormatTest.java
index e53660b6a946..7ce82141e038 100644
--- a/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/spring-mvc-j8-async/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FormatTest.java
index a4d1863fad35..ba39164b5aec 100644
--- a/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/spring-mvc-j8-localdatetime/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FormatTest.java
index ef025eda014d..f43bc1d659e9 100644
--- a/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/spring-mvc/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FormatTest.java
index ef025eda014d..f43bc1d659e9 100644
--- a/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-beanvalidation/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FormatTest.java
index e53660b6a946..7ce82141e038 100644
--- a/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-delegate-j8/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FormatTest.java
index ef025eda014d..f43bc1d659e9 100644
--- a/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-delegate/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FormatTest.java
index e53660b6a946..7ce82141e038 100644
--- a/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-implicitHeaders/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FormatTest.java
index e53660b6a946..7ce82141e038 100644
--- a/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-reactive/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/springboot-reactive/src/main/resources/openapi.yaml b/samples/server/petstore/springboot-reactive/src/main/resources/openapi.yaml
index efdfdac7837a..a4da8e432b8c 100644
--- a/samples/server/petstore/springboot-reactive/src/main/resources/openapi.yaml
+++ b/samples/server/petstore/springboot-reactive/src/main/resources/openapi.yaml
@@ -1554,6 +1554,7 @@ components:
           format: date-time
           type: string
         uuid:
+          example: 72f98069-206d-4f12-9f12-3d1e525a8e84
           format: uuid
           type: string
         password:
diff --git a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FormatTest.java
index e53660b6a946..7ce82141e038 100644
--- a/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot-useoptional/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FormatTest.java b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FormatTest.java
index bfbf0224efc7..9a402df17ef3 100644
--- a/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FormatTest.java
+++ b/samples/server/petstore/springboot-virtualan/src/main/java/org/openapitools/virtualan/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid
 
diff --git a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FormatTest.java b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FormatTest.java
index e53660b6a946..7ce82141e038 100644
--- a/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FormatTest.java
+++ b/samples/server/petstore/springboot/src/main/java/org/openapitools/model/FormatTest.java
@@ -304,7 +304,7 @@ public FormatTest uuid(UUID uuid) {
    * Get uuid
    * @return uuid
   */
-  @ApiModelProperty(value = "")
+  @ApiModelProperty(example = "72f98069-206d-4f12-9f12-3d1e525a8e84", value = "")
 
   @Valid