java.lang.NullPointerException

Coderanch | Sebastian Janisch | 7 years ago
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    Regarding Form based authentication

    Coderanch | 7 years ago | Sebastian Janisch
    java.lang.NullPointerException
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    Coderanch | 1 decade ago | Angela Stempfel
    java.lang.NullPointerException
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    How can I diagnose a Null pointer exception in Tomcat

    Stack Overflow | 5 years ago | DaveWalley
    java.lang.NullPointerException

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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage()
    2. Glassfish Core
      CoyoteAdapter.service
      1. org.apache.catalina.authenticator.FormAuthenticator.forwardToLoginPage(FormAuthenticator.java:316)
      2. org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:244)
      3. org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:491)
      4. org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
      5. org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
      6. org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
      7. org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:174)
      7 frames
    3. Grizzly HTTP
      LeaderFollowerWorkerThread.runIt
      1. org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:875)
      2. org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
      3. org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
      4. org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
      4 frames
    4. Tomcat Util
      ThreadPool$ControlRunnable.run
      1. org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:689)
      1 frame
    5. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:619)
      1 frame