Problem with fix pack 3 for WAs 4.0?

[Steve Granton]

Hi,
We use the java.lang.reflect package to interrogate an object in order to produce an XML representation of it that we then use transform using XSL. When we were running with WAS 4.0.2 this worked fine (as it did on Weblogic 6.1). However when we applied the most recent fix pack to take us to WAS 4.0.3 we started to experience the following error:
java.lang.IllegalAccessException: java/lang/String
at java.lang.reflect.Method.invoke(Native Method)
at com.versko.utilities.xmlgenerator.XmlGenerator.generateObjectXmlData(Unknown Source)
at com.versko.utilities.xmlgenerator.XmlGenerator.generateXml(Unknown Source)
at com.versko.controller.web.WebTierEventHandler.finaliseXml(Unknown Source)
at com.versko.controller.web.WebTierEventHandler.processEvent(Unknown Source)
at com.versko.controller.web.Controller.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.servlet.engine.webapp.StrictServletInstance.doService(ServletManager.java:827)
at com.ibm.servlet.engine.webapp.StrictLifecycleServlet._service(StrictLifecycleServlet.java:167)
at com.ibm.servlet.engine.webapp.IdleServletState.service(StrictLifecycleServlet.java:297)
at com.ibm.servlet.engine.webapp.StrictLifecycleServlet.service(StrictLifecycleServlet.java:110)
at com.ibm.servlet.engine.webapp.ServletInstance.service(ServletManager.java:472)
at com.ibm.servlet.engine.webapp.ValidServletReferenceState.dispatch(ServletManager.java:1012)
at com.ibm.servlet.engine.webapp.ServletInstanceReference.dispatch(ServletManager.java:913)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java:665)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java:331)
at com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:117)
at com.ibm.servlet.engine.srt.WebAppInvoker.doForward(WebAppInvoker.java:124)
at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:218)
at com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:67)
at com.ibm.servlet.engine.invocation.CacheableInvocationContext.invoke(CacheableInvocationContext.java:106)
at com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:125)
at com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener.java:315)
at com.ibm.servlet.engine.http11.HttpConnection.handleRequest(HttpConnection.java:60)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:323)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:252)
at com.ibm.ws.util.CachedThread.run(ThreadPool.java:137)
This has to be a problem with the fix pack.
Has anyone experienced any other problems?
Does anyone have a solution to this?
Cheers,
Steve