PQ66830: AFTER APPLYING PQ54217(OR FIXPACK 4.0.4) CHAINERSERVLET FAILS TOHANDLE REQUEST WITH SESSIONS. | |||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description After applying PQ54217( or fixpack 4.0.4 ) that ChainerServlet throws a ClassCastException when attempting to participate in sessions. Stact trace: [9/18/02 15:53:14:186 MDT] 3c8778a0 WebGroup X Servlet Error: com.ibm.websphere.servlet.filter.ChainedRequest: java.lang.ClassCastException: com.ibm.websphere.servlet.filter .ChainedRequest at com.ibm.servlet.engine.webapp.HttpServletRequestProxy. getSRTSessionAPISupport(HttpServletRequestProxy.java:279) at com.ibm.servlet.engine.webapp.HttpServletRequestProxy. getSession(HttpServletRequestProxy.java:103) at com.ibm.servlet.engine.webapp.HttpServletRequestProxy. getSession(HttpServletRequestProxy.java:107) at com.galileo.product.ctp.servlets.GZipServlet.service (GZipServlet.java:46) 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:678) 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.websphere.servlet.filter.ServletChain. handleDispatch(ServletChain.java(Compiled Code)) at com.ibm.websphere.servlet.filter.ChainerServlet. service(ChainerServlet.java(Compiled Code)) at com.ibm.websphere.servlet.filter.ChainerServlet. service(ChainerServlet.java(Compiled Code)) 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:678) 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:134) at com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook (WebAppInvoker.java:239) 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:154) 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(Compiled Code)) at com.ibm.ws.http.HttpConnection.run(HttpConnection.java (Compiled Code)) at com.ibm.ws.util.CachedThread.run(ThreadPool.java:137)Local fix Problem summary **************************************************************** * USERS AFFECTED: WebSphere Application Server Developers * * utilizing session with ChainerServlet * * or having mime filtering enabled. * **************************************************************** * PROBLEM DESCRIPTION: ClassCastException is thrown when * * attempting to retrieve a session * * object when request is of type * * ChainedRequest. * **************************************************************** * RECOMMENDATION: * **************************************************************** When using mime filtering or WebSphere's ChainerServlet, the ChainedRequest object was not able to retrieve the session objects. A ClassCastException was thrown since ChainedRequest did not extend / implement the WebSphere class HttpServletRequestProxy object used to retrieve session information.Problem conclusion Modified the WebSphere implementation for retrieving HttpServletRequestProxy to ensure that all requests can be cast to HttpServletRequestProxy when attempting to retrieve the session object.Temporary fix //wasdoc0/apars/pq66830/<was_version>Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
SRLS
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Document Information |
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ66830
IBM Group: Software Group
Modified date: Oct 7, 2002
(C) Copyright IBM Corporation 2000, 2006. All Rights Reserved.