diff --git a/bin/utils/test_file_list.yaml b/bin/utils/test_file_list.yaml
index f1555d3fe7d9..737a881f2814 100644
--- a/bin/utils/test_file_list.yaml
+++ b/bin/utils/test_file_list.yaml
@@ -10,7 +10,7 @@
 - filename: "samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/ClientTest.java"
   sha256: db505f7801fef62c13a08a8e9ca1fc4c5c947ab46b46f12943139d353feacf17
 - filename: "samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/JSONTest.java"
-  sha256: 3371236d615e7fb79ed87d00c9fc486c31c379195a658781ac9440f0e3228d62
+  sha256: 6db714e9744c150c8982c3cb18e4f37a9c1ecd8f72f6d58943986e781ab4a344
 - filename: "samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/api/PetApiTest.java"
   sha256: 0d64cdc11809a7b5b952ccdad2bd91bd0045b3894d6fabf3e368fa0be12b8217
 - filename: "samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/model/PetTest.java"
diff --git a/samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/JSONTest.java b/samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/JSONTest.java
index b0d95e91926d..b0cd66291d2e 100644
--- a/samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/JSONTest.java
+++ b/samples/client/petstore/java/okhttp-gson/src/test/java/org/openapitools/client/JSONTest.java
@@ -576,4 +576,15 @@ public void testAdditionalProperties() throws Exception {
         z.putAdditionalProperty("new_object", t);
         assertEquals(z.toJson(), "{\"type\":\"plains\",\"className\":\"zebra\",\"new_key\":\"new_value\",\"new_boolean\":true,\"new_object\":{\"id\":34,\"name\":\"just a tag\"},\"from_json\":4567,\"from_json_map\":{\"nested_string\":\"nested_value\"},\"new_number\":1.23}");
     }
+
+
+    @Test
+    public void testInvalidEnumValueException() {
+        // test Pet with invalid status
+        String str = "{\"id\": 5847, \"name\":\"pet test 1\", \"photoUrls\": [\"https://a.com\", \"https://b.com\"],\"status\":\"sleeping\"}";
+        Exception exception = assertThrows(java.lang.IllegalArgumentException.class, () -> {
+            Pet t7 = Pet.fromJson(str);
+        });
+        assertTrue(exception.getMessage().contains("Unexpected value 'sleeping'"));
+    }
 }