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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=8717 java.lang.ClassCastException at org.apache.catalina.core.ApplicationDispatcher.unwrapRequest(ApplicationDispatcher.java:845) Summary: java.lang.ClassCastException at org.apache.catalina.core.ApplicationDispatcher.unwrapReq uest(ApplicationDispatcher.java:845) Product: Tomcat 4 Version: 4.0.3 Final Platform: PC OS/Version: Windows NT/2K Status: NEW Severity: Critical Priority: Other Component: Catalina AssignedTo: [EMAIL PROTECTED] ReportedBy: [EMAIL PROTECTED] CC: [EMAIL PROTECTED] Below is the code for method org.apache.catalina.core.ApplicationDispatcher.unwrapRequest() in ApplicationDispatcher.java. You can clearly see here that the objects "current" and "previous" are declared as ServletRequest objects although later in the code they are attempted to be casted as ServletRequestWrapper objects. This causes a ClassCastException in Tomcat. I will also attach exception stack trace that I got at the bottom of this. private void unwrapRequest() { if (wrapRequest == null) return; ServletRequest previous = null; ServletRequest current = outerRequest; while (current != null) { // If we run into the container request we are done if (current instanceof Request) break; // Remove the current request if it is our wrapper if (current == wrapRequest) { ServletRequest next = ((ServletRequestWrapper) current).getRequest(); if (previous == null) outerRequest = next; else ((ServletRequestWrapper) previous).setRequest(next); break; } // Advance to the next request in the chain previous = current; current = ((ServletRequestWrapper) current).getRequest(); } } Stack Trace for the said ClassCastException (found in Tomcat log files): --------------------------------------------- 2002-05-01 12:13:42 StandardWrapperValve[Quran]: Servlet.service() for servlet Quran threw exception java.lang.ClassCastException: org.apache.catalina.connector.HttpRequestFacade at org.apache.catalina.core.ApplicationDispatcher.unwrapRequest (ApplicationDispatcher.java:845) at org.apache.catalina.core.ApplicationDispatcher.doForward (ApplicationDispatcher.java:432) at org.apache.catalina.core.ApplicationDispatcher.forward (ApplicationDispatcher.java:355) at Quran.searchQuran(Quran.java:1396) at Quran.doGet(Quran.java:603) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter (ApplicationFilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter (ApplicationFilterChain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke (StandardWrapperValve.java:243) at org.apache.catalina.core.StandardPipeline.invokeNext (StandardPipeline.java:566) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardContextValve.invoke (StandardContextValve.java:190) at org.apache.catalina.core.StandardPipeline.invokeNext (StandardPipeline.java:566) at org.apache.catalina.valves.CertificatesValve.invoke (CertificatesValve.java:246) at org.apache.catalina.core.StandardPipeline.invokeNext (StandardPipeline.java:564) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardContext.invoke (StandardContext.java:2343) at org.apache.catalina.core.StandardHostValve.invoke (StandardHostValve.java:180) at org.apache.catalina.core.StandardPipeline.invokeNext (StandardPipeline.java:566) at org.apache.catalina.valves.ErrorDispatcherValve.invoke (ErrorDispatcherValve.java:170) at org.apache.catalina.core.StandardPipeline.invokeNext (StandardPipeline.java:564) at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:170) at org.apache.catalina.core.StandardPipeline.invokeNext (StandardPipeline.java:564) at org.apache.catalina.valves.AccessLogValve.invoke (AccessLogValve.java:468) at org.apache.catalina.core.StandardPipeline.invokeNext (StandardPipeline.java:564) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.core.StandardEngineValve.invoke (StandardEngineValve.java:174) at org.apache.catalina.core.StandardPipeline.invokeNext (StandardPipeline.java:566) at org.apache.catalina.core.StandardPipeline.invoke (StandardPipeline.java:472) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) at org.apache.catalina.connector.http.HttpProcessor.process (HttpProcessor.java:1012) at org.apache.catalina.connector.http.HttpProcessor.run (HttpProcessor.java:1107) at java.lang.Thread.run(Thread.java:536) Thanks, Mete Kural -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
