diff --git a/examples/java/src/main/java/com/twilio/rest/previewiam/organizations/UserCreator.java b/examples/java/src/main/java/com/twilio/rest/previewiam/organizations/UserCreator.java
index 6bdca6548..30ba8054f 100644
--- a/examples/java/src/main/java/com/twilio/rest/previewiam/organizations/UserCreator.java
+++ b/examples/java/src/main/java/com/twilio/rest/previewiam/organizations/UserCreator.java
@@ -79,7 +79,7 @@ public User create(final BearerTokenTwilioRestClient client){
             Domains.PREVIEWIAM.toString(),
             path
         );
-        request.setContentType(EnumConstants.ContentType.FORM_URLENCODED);
+        request.setContentType(EnumConstants.ContentType.JSON);
         addPostParams(request, client);
         Response response = client.request(request);
         if (response == null) {
diff --git a/examples/java/src/main/java/com/twilio/rest/previewiam/organizations/UserUpdater.java b/examples/java/src/main/java/com/twilio/rest/previewiam/organizations/UserUpdater.java
index 5e5e82f58..f56013776 100644
--- a/examples/java/src/main/java/com/twilio/rest/previewiam/organizations/UserUpdater.java
+++ b/examples/java/src/main/java/com/twilio/rest/previewiam/organizations/UserUpdater.java
@@ -82,7 +82,7 @@ public User update(final BearerTokenTwilioRestClient client){
             Domains.PREVIEWIAM.toString(),
             path
         );
-        request.setContentType(EnumConstants.ContentType.FORM_URLENCODED);
+        request.setContentType(EnumConstants.ContentType.JSON);
         addPostParams(request, client);
         addHeaderParams(request);
         Response response = client.request(request);
diff --git a/src/main/java/com/twilio/oai/api/JavaApiResourceBuilder.java b/src/main/java/com/twilio/oai/api/JavaApiResourceBuilder.java
index 3e95f1123..7c71de2ca 100644
--- a/src/main/java/com/twilio/oai/api/JavaApiResourceBuilder.java
+++ b/src/main/java/com/twilio/oai/api/JavaApiResourceBuilder.java
@@ -96,16 +96,24 @@ public IApiResourceBuilder updateTemplate() {
         return this;
     }
 
+    private void populateContentType(CodegenOperation co) {
+        if(co.consumes != null && !co.consumes.isEmpty())
+            co.consumes.forEach(consume -> {
+                if(consume.getOrDefault("mediaType", "").equals(CONTENT_TYPE_JSON))
+                    co.vendorExtensions.put("x-is-json", true);
+            });
+    }
+
     @Override
     public ApiResourceBuilder updateOperations(Resolver<CodegenParameter> codegenParameterIResolver) {
         headerParamModelList = new HashSet<>();
         JsonRequestBodyResolver jsonRequestBodyResolver = new JsonRequestBodyResolver(this, codegenPropertyIResolver);
         this.codegenOperationList.forEach(co -> {
             updateNestedContent(co);
+            populateContentType(co);
             updateHttpMethod(co);
             List<String> filePathArray = new ArrayList<>(Arrays.asList(co.baseName.split(PATH_SEPARATOR_PLACEHOLDER)));
             String resourceName = filePathArray.remove(filePathArray.size()-1);
-            
 
             co.allParams.stream()
                     .filter(item -> !(item.getContent() != null && item.getContent().get("application/json") != null))
@@ -631,7 +639,7 @@ public void addEnums(IJsonSchemaValidationProperties item) {
                 } else {
                     enumName = ((CodegenProperty) enumItem).enumName;
                 }
-                
+
                 if (enumName.equals(newItemEnumName)) {
                     isDuplicate = true;
                     break; // No need to continue checking duplicates