diff --git a/samples/client/petstore/java/okhttp-gson-nextgen/docs/AnotherFakeApi.md b/samples/client/petstore/java/okhttp-gson-nextgen/docs/AnotherFakeApi.md
index 149488eff9a..af82f73feb6 100644
--- a/samples/client/petstore/java/okhttp-gson-nextgen/docs/AnotherFakeApi.md
+++ b/samples/client/petstore/java/okhttp-gson-nextgen/docs/AnotherFakeApi.md
@@ -35,11 +35,7 @@ public class Example {
       Client result = apiInstance.call123testSpecialTags(client);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling AnotherFakeApi#call123testSpecialTags");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
diff --git a/samples/client/petstore/java/okhttp-gson-nextgen/docs/DefaultApi.md b/samples/client/petstore/java/okhttp-gson-nextgen/docs/DefaultApi.md
index 311c4fa6bbc..c77f189afd0 100644
--- a/samples/client/petstore/java/okhttp-gson-nextgen/docs/DefaultApi.md
+++ b/samples/client/petstore/java/okhttp-gson-nextgen/docs/DefaultApi.md
@@ -32,11 +32,7 @@ public class Example {
       InlineResponseDefault result = apiInstance.fooGet();
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling DefaultApi#fooGet");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
diff --git a/samples/client/petstore/java/okhttp-gson-nextgen/docs/FakeApi.md b/samples/client/petstore/java/okhttp-gson-nextgen/docs/FakeApi.md
index 3401bb6eeb0..bee53680247 100644
--- a/samples/client/petstore/java/okhttp-gson-nextgen/docs/FakeApi.md
+++ b/samples/client/petstore/java/okhttp-gson-nextgen/docs/FakeApi.md
@@ -46,11 +46,7 @@ public class Example {
       HealthCheckResult result = apiInstance.fakeHealthGet();
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#fakeHealthGet");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -105,11 +101,7 @@ public class Example {
       Boolean result = apiInstance.fakeOuterBooleanSerialize(body);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#fakeOuterBooleanSerialize");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -167,11 +159,7 @@ public class Example {
       OuterComposite result = apiInstance.fakeOuterCompositeSerialize(outerComposite);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#fakeOuterCompositeSerialize");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -229,11 +217,7 @@ public class Example {
       BigDecimal result = apiInstance.fakeOuterNumberSerialize(body);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#fakeOuterNumberSerialize");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -291,11 +275,7 @@ public class Example {
       String result = apiInstance.fakeOuterStringSerialize(body);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#fakeOuterStringSerialize");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -350,11 +330,7 @@ public class Example {
       List<OuterEnum> result = apiInstance.getArrayOfEnums();
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#getArrayOfEnums");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -408,11 +384,7 @@ public class Example {
     try {
       apiInstance.testBodyWithFileSchema(fileSchemaTestClass);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testBodyWithFileSchema");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -468,11 +440,7 @@ public class Example {
     try {
       apiInstance.testBodyWithQueryParams(query, user);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testBodyWithQueryParams");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -531,11 +499,7 @@ public class Example {
       Client result = apiInstance.testClientModel(client);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testClientModel");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -611,11 +575,7 @@ public class Example {
     try {
       apiInstance.testEndpointParameters(number, _double, patternWithoutDelimiter, _byte, integer, int32, int64, _float, string, binary, date, dateTime, password, paramCallback);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testEndpointParameters");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -693,11 +653,7 @@ public class Example {
     try {
       apiInstance.testEnumParameters(enumHeaderStringArray, enumHeaderString, enumQueryStringArray, enumQueryString, enumQueryInteger, enumQueryDouble, enumFormStringArray, enumFormString);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testEnumParameters");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -776,11 +732,7 @@ public class Example {
             .int64Group(int64Group)
             .execute();
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testGroupParameters");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -840,11 +792,7 @@ public class Example {
     try {
       apiInstance.testInlineAdditionalProperties(requestBody);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testInlineAdditionalProperties");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -900,11 +848,7 @@ public class Example {
     try {
       apiInstance.testJsonFormData(param, param2);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testJsonFormData");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -966,11 +910,7 @@ public class Example {
     try {
       apiInstance.testQueryParameterCollectionFormat(pipe, ioutil, http, url, context);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeApi#testQueryParameterCollectionFormat");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
diff --git a/samples/client/petstore/java/okhttp-gson-nextgen/docs/FakeClassnameTags123Api.md b/samples/client/petstore/java/okhttp-gson-nextgen/docs/FakeClassnameTags123Api.md
index dbd12c37f05..5212d7c7781 100644
--- a/samples/client/petstore/java/okhttp-gson-nextgen/docs/FakeClassnameTags123Api.md
+++ b/samples/client/petstore/java/okhttp-gson-nextgen/docs/FakeClassnameTags123Api.md
@@ -42,11 +42,7 @@ public class Example {
       Client result = apiInstance.testClassname(client);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling FakeClassnameTags123Api#testClassname");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
diff --git a/samples/client/petstore/java/okhttp-gson-nextgen/docs/PetApi.md b/samples/client/petstore/java/okhttp-gson-nextgen/docs/PetApi.md
index cca26664dea..8cdb1506fb5 100644
--- a/samples/client/petstore/java/okhttp-gson-nextgen/docs/PetApi.md
+++ b/samples/client/petstore/java/okhttp-gson-nextgen/docs/PetApi.md
@@ -46,11 +46,7 @@ public class Example {
     try {
       apiInstance.addPet(pet);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#addPet");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -111,11 +107,7 @@ public class Example {
     try {
       apiInstance.deletePet(petId, apiKey);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#deletePet");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -180,11 +172,7 @@ public class Example {
       List<Pet> result = apiInstance.findPetsByStatus(status);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#findPetsByStatus");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -249,11 +237,7 @@ public class Example {
       List<Pet> result = apiInstance.findPetsByTags(tags);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#findPetsByTags");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -319,11 +303,7 @@ public class Example {
       Pet result = apiInstance.getPetById(petId);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#getPetById");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -386,11 +366,7 @@ public class Example {
     try {
       apiInstance.updatePet(pet);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#updatePet");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -454,11 +430,7 @@ public class Example {
     try {
       apiInstance.updatePetWithForm(petId, name, status);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#updatePetWithForm");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -523,11 +495,7 @@ public class Example {
       ModelApiResponse result = apiInstance.uploadFile(petId, additionalMetadata, file);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#uploadFile");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -592,11 +560,7 @@ public class Example {
       ModelApiResponse result = apiInstance.uploadFileWithRequiredFile(petId, requiredFile, additionalMetadata);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling PetApi#uploadFileWithRequiredFile");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
diff --git a/samples/client/petstore/java/okhttp-gson-nextgen/docs/StoreApi.md b/samples/client/petstore/java/okhttp-gson-nextgen/docs/StoreApi.md
index 270388f5e44..8d9dee8e68f 100644
--- a/samples/client/petstore/java/okhttp-gson-nextgen/docs/StoreApi.md
+++ b/samples/client/petstore/java/okhttp-gson-nextgen/docs/StoreApi.md
@@ -37,11 +37,7 @@ public class Example {
     try {
       apiInstance.deleteOrder(orderId);
     } catch (ApiException e) {
-      System.err.println("Exception when calling StoreApi#deleteOrder");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -106,11 +102,7 @@ public class Example {
       Map<String, Integer> result = apiInstance.getInventory();
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling StoreApi#getInventory");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -165,11 +157,7 @@ public class Example {
       Order result = apiInstance.getOrderById(orderId);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling StoreApi#getOrderById");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -227,11 +215,7 @@ public class Example {
       Order result = apiInstance.placeOrder(order);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling StoreApi#placeOrder");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
diff --git a/samples/client/petstore/java/okhttp-gson-nextgen/docs/UserApi.md b/samples/client/petstore/java/okhttp-gson-nextgen/docs/UserApi.md
index 26a0642e323..5c8ee4c6f5e 100644
--- a/samples/client/petstore/java/okhttp-gson-nextgen/docs/UserApi.md
+++ b/samples/client/petstore/java/okhttp-gson-nextgen/docs/UserApi.md
@@ -41,11 +41,7 @@ public class Example {
     try {
       apiInstance.createUser(user);
     } catch (ApiException e) {
-      System.err.println("Exception when calling UserApi#createUser");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -100,11 +96,7 @@ public class Example {
     try {
       apiInstance.createUsersWithArrayInput(user);
     } catch (ApiException e) {
-      System.err.println("Exception when calling UserApi#createUsersWithArrayInput");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -159,11 +151,7 @@ public class Example {
     try {
       apiInstance.createUsersWithListInput(user);
     } catch (ApiException e) {
-      System.err.println("Exception when calling UserApi#createUsersWithListInput");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -220,11 +208,7 @@ public class Example {
     try {
       apiInstance.deleteUser(username);
     } catch (ApiException e) {
-      System.err.println("Exception when calling UserApi#deleteUser");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -281,11 +265,7 @@ public class Example {
       User result = apiInstance.getUserByName(username);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling UserApi#getUserByName");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -344,11 +324,7 @@ public class Example {
       String result = apiInstance.loginUser(username, password);
       System.out.println(result);
     } catch (ApiException e) {
-      System.err.println("Exception when calling UserApi#loginUser");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -404,11 +380,7 @@ public class Example {
     try {
       apiInstance.logoutUser();
     } catch (ApiException e) {
-      System.err.println("Exception when calling UserApi#logoutUser");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }
@@ -463,11 +435,7 @@ public class Example {
     try {
       apiInstance.updateUser(username, user);
     } catch (ApiException e) {
-      System.err.println("Exception when calling UserApi#updateUser");
-      System.err.println("Status code: " + e.getCode());
-      System.err.println("Reason: " + e.getResponseBody());
-      System.err.println("Response headers: " + e.getResponseHeaders());
-      e.printStackTrace();
+
     }
   }
 }