java.lang.NullPointerException

hivmr.com | 7 months ago
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    page becomes blank if i make a request after session is expired

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.tomcat.util.buf.ByteChunk.append()
    2. Tomcat Util
      ByteChunk.append
      1. org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:324)
      1 frame
    3. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.authenticator.FormAuthenticator.saveRequest(FormAuthenticator.java:487)
      2. org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:236)
      3. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
      4. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
      5. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
      6. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
      7. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
      7 frames
    4. Grizzly HTTP
      LeaderFollowerWorkerThread.runIt
      1. org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
      2. org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
      3. org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
      4. org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
      4 frames
    5. Tomcat Util
      ThreadPool$ControlRunnable.run
      1. org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
      1 frame
    6. Java RT
      Thread.run
      1. java.lang.Thread.run(Unknown Source)
      1 frame