gson: new fix on saml2 plugin

Author: weizhouapache

server/src/main/java/com/cloud/api/response/ApiResponseSerializer.java

@@ -86,8 +86,8 @@ public static String unescape(String escaped) {
 
     public static String toJSONSerializedString(ResponseObject result, StringBuilder log) {
         if (result != null && log != null) {
-            Gson responseBuilder = ApiResponseGsonHelper.getBuilder().excludeFieldsWithModifiers(Modifier.TRANSIENT).create();
-            Gson logBuilder = ApiResponseGsonHelper.getLogBuilder().excludeFieldsWithModifiers(Modifier.TRANSIENT).create();
+            Gson responseBuilder = ApiResponseGsonHelper.getBuilder().excludeFieldsWithModifiers(Modifier.TRANSIENT, Modifier.STATIC).create();
+            Gson logBuilder = ApiResponseGsonHelper.getLogBuilder().excludeFieldsWithModifiers(Modifier.TRANSIENT, Modifier.STATIC).create();
 
             StringBuilder sb = new StringBuilder();