when we upgrade webSphere to 5.0.2.11 fix version , we get the problem.
2005/6/28 10:56:36:998 CST] 768d4253 WebGroup E SRVE0026E: [
Servlet 錯誤]-[SimpleFileServlet]: java.lang.NullPointerException
at com.ibm.ws.webcontainer.webapp.WebApp.getErrorPageUrl(WebApp.java:342)
at com.ibm.ws.webcontainer.webapp.WebApp.getErrorPageDispatcher(WebApp.java:1689)
at com.ibm.ws.webcontainer.webapp.WebApp.handleError(WebApp.java:1067)
at com.ibm.ws.webcontainer.webapp.WebApp.sendError(WebApp.java:964)
at com.ibm.ws.webcontainer.srt.SRTServletResponseContext.sendError(SRTServletResponseContext.java:182)
at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendError(SRTServletResponse.java:676)
at com.ibm.ws.webcontainer.servlet.SimpleFileServlet.doGet(SimpleFileServlet.java:344)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:80)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:214)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:622)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:447)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:672)
[2005/6/28 10:56:37:019 CST] 768d4253 WebGroup I SRVE0180I: [TBB_CNB] [/TEST_CNB] [Servlet.LOG]: Error page exception The server cannot u
se the error page specified for your application because of the exception printed below.
[2005/6/28 10:56:37:020 CST] 768d4253 WebGroup I SRVE0181I: [TBB_CNB] [/TEST_CNB] [Servlet.LOG]: Error Page Exception: : com.ibm.ws.webcon
tainer.servlet.exception.UncaughtServletException: Server caught unhandled exception from servlet [SimpleFileServlet]: null
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:80)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:214)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:622)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:447)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:672)
---- Begin backtrace for Nested Throwables
java.lang.NullPointerException
at com.ibm.ws.webcontainer.webapp.WebApp.getErrorPageUrl(WebApp.java:342)
at com.ibm.ws.webcontainer.webapp.WebApp.getErrorPageDispatcher(WebApp.java:1689)
at com.ibm.ws.webcontainer.webapp.WebApp.handleError(WebApp.java:1067)
at com.ibm.ws.webcontainer.webapp.WebApp.sendError(WebApp.java:964)
at com.ibm.ws.webcontainer.srt.SRTServletResponseContext.sendError(SRTServletResponseContext.java:182)
at com.ibm.ws.webcontainer.srt.SRTServletResponse.sendError(SRTServletResponse.java:676)
at com.ibm.ws.webcontainer.servlet.SimpleFileServlet.doGet(SimpleFileServlet.java:344)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.ibm.ws.webcontainer.servlet.StrictServletInstance.doService(StrictServletInstance.java:110)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet._service(StrictLifecycleServlet.java:174)
at com.ibm.ws.webcontainer.servlet.IdleServletState.service(StrictLifecycleServlet.java:313)
at com.ibm.ws.webcontainer.servlet.StrictLifecycleServlet.service(StrictLifecycleServlet.java:116)
at com.ibm.ws.webcontainer.servlet.ServletInstance.service(ServletInstance.java:283)
at com.ibm.ws.webcontainer.servlet.ValidServletReferenceState.dispatch(ValidServletReferenceState.java:42)
at com.ibm.ws.webcontainer.servlet.ServletInstanceReference.dispatch(ServletInstanceReference.java(Inlined Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.handleWebAppDispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.dispatch(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java(Compiled Code))
at com.ibm.ws.webcontainer.srt.WebAppInvoker.doForward(WebAppInvoker.java:80)
at com.ibm.ws.webcontainer.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.java:214)
at com.ibm.ws.webcontainer.cache.invocation.CachedInvocation.handleInvocation(CachedInvocation.java:71)
at com.ibm.ws.webcontainer.srp.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.java:182)
at com.ibm.ws.webcontainer.oselistener.OSEListenerDispatcher.service(OSEListener.java:334)
at com.ibm.ws.webcontainer.http.HttpConnection.handleRequest(HttpConnection.java:56)
at com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:622)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:447)
at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:672)