Web Services Communication failed in 2.5 but not in 2.2

Question

I have a web services interface that was generated via netbeans for the wireless toolkit 2.5 and 2.5.1ea. When I run the connection everything is retrieved properly and using debug all returned objects are correct. In this particular example the mapping to returnObj[1] which is an array of Longs works correctly. The null pointer exception occurs on the assignment of stringArray = (java.lang.String[]) filesObj; which is casting an array of objects to an array of strings. If you run the same code in 2.2 it works as expected.
               result = new com.vp.video.ImageDir();
               boolean a_boolean;
               Object completeObj = _returnObj[0];
               a_boolean = ((java.lang.Boolean)completeObj).booleanValue();
               result.setComplete(a_boolean);
               java.lang.Long[] longArray;
               Object fileTimesObj = _returnObj[1];
               longArray = (java.lang.Long[]) fileTimesObj;
               result.setFileTimes(longArray);
               java.lang.String[] stringArray;
               Object filesObj = _returnObj[2];
               stringArray = (java.lang.String[]) filesObj;
               result.setFiles(stringArray);
               java.lang.String string;
               Object tokenObj = _returnObj[3];
               string = (java.lang.String)tokenObj;
               result.setToken(string);

Answer 1

Plus+ Addition To Above
I'm not looking for solutions like, "just use FMLE 3.1," I'm looking for a fix so I can use it on FME 2.5. If you can't provide a reasonable answer in my set boundary, don't post.