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Facing problem with Filter and RequestDispatcher

 
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In the filter, iam dispatching the request to login page when the session is invalidated.....

but iam getting this error

javax.servlet.ServletException
at org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at com.timeoffice.PreProcessFilter.doFilter(PreProcessFilter.java:163)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
at java.lang.Thread.run(Thread.java:595)

need help
 
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You will need to provide more info. Please post your web.xml, the struts config file and the class that implements Filter.
 
Abhishek Reddy
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<!--Filter Part of web.xml File-->


<!--------------->

Filter Code


--------------------------------
 
Tim McGuire
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Abhishek Reddy wrote:



can you double check to make sure the call to request.getRequestDispatcher() does not return null? I bet for easier debugging, you could use try-catch statements to track down errors instead of using "throws"
 
Abhishek Reddy
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thanks for the reply......i have checked, it is not returning null also i have kept the code under try catch....but the code doesnot throw any exception here

The exception is thrown in the doFilter() method i.e. at this point chain.doFilter(request, response);

here is the code to doFilter() method

 
Abhishek Reddy
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i did a small mistake.......now it is working
actually i have to stop invoking chain.doFilter() method....when request is dispatched
 
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