java.lang.NullPointerException

Apache's JIRA Issue Tracker | Min Zhou | 3 years ago
  1. 0

    Apache's JIRA Issue Tracker | 3 years ago | Min Zhou
    java.lang.NullPointerException
  2. 0

    Apache's JIRA Issue Tracker | 3 years ago | Min Zhou
    java.lang.NullPointerException
  3. Speed up your debug routine!

    Automated exception search integrated into your IDE

  4. 0

    Datanode starts but not namenode

    Stack Overflow | 3 years ago | Raphael_LK
    java.lang.NullPointerException
  5. 0

    Android: Saving Map State in Google map

    Stack Overflow | 11 months ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException

    Not finding the right solution?
    Take a tour to get the most out of Samebug.

    Tired of useless tips?

    Automated exception search integrated into your IDE

    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at org.apache.jasper.servlet.JspServlet.destroy()
    2. GWT dev
      JspServlet.destroy
      1. org.apache.jasper.servlet.JspServlet.destroy(JspServlet.java:410)
      1 frame
    3. Jetty Server
      ServletHolder.doStop
      1. org.mortbay.jetty.servlet.ServletHolder.destroyInstance(ServletHolder.java:318)
      2. org.mortbay.jetty.servlet.ServletHolder.doStop(ServletHolder.java:289)
      2 frames
    4. Jetty Util
      AbstractLifeCycle.stop
      1. org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
      1 frame
    5. Jetty Server
      ServletHandler.doStop
      1. org.mortbay.jetty.servlet.ServletHandler.doStop(ServletHandler.java:171)
      1 frame
    6. Jetty Util
      AbstractLifeCycle.stop
      1. org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
      1 frame
    7. Jetty Server
      HandlerWrapper.doStop
      1. org.mortbay.jetty.handler.HandlerWrapper.doStop(HandlerWrapper.java:142)
      1 frame
    8. Jetty Util
      AbstractLifeCycle.stop
      1. org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
      1 frame
    9. Jetty Server
      SessionHandler.doStop
      1. org.mortbay.jetty.handler.HandlerWrapper.doStop(HandlerWrapper.java:142)
      2. org.mortbay.jetty.servlet.SessionHandler.doStop(SessionHandler.java:124)
      2 frames
    10. Jetty Util
      AbstractLifeCycle.stop
      1. org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
      1 frame
    11. Jetty Server
      WebAppContext.doStop
      1. org.mortbay.jetty.handler.HandlerWrapper.doStop(HandlerWrapper.java:142)
      2. org.mortbay.jetty.handler.ContextHandler.doStop(ContextHandler.java:591)
      3. org.mortbay.jetty.webapp.WebAppContext.doStop(WebAppContext.java:498)
      3 frames
    12. Jetty Util
      AbstractLifeCycle.stop
      1. org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
      1 frame
    13. Hadoop
      HttpServer.stop
      1. org.apache.hadoop.http.HttpServer.stop(HttpServer.java:792)
      1 frame
    14. Apache Hadoop HDFS
      MiniDFSCluster$Builder.build
      1. org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.stop(NameNodeHttpServer.java:160)
      2. org.apache.hadoop.hdfs.server.namenode.NameNode.stopHttpServer(NameNode.java:633)
      3. org.apache.hadoop.hdfs.server.namenode.NameNode.stopCommonServices(NameNode.java:589)
      4. org.apache.hadoop.hdfs.server.namenode.NameNode.stop(NameNode.java:732)
      5. org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:688)
      6. org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:669)
      7. org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1254)
      8. org.apache.hadoop.hdfs.MiniDFSCluster.createNameNode(MiniDFSCluster.java:893)
      9. org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:784)
      10. org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:642)
      11. org.apache.hadoop.hdfs.MiniDFSCluster.<init>(MiniDFSCluster.java:334)
      12. org.apache.hadoop.hdfs.MiniDFSCluster$Builder.build(MiniDFSCluster.java:316)
      12 frames
    15. org.apache.tajo
      QueryTestCaseBase.<clinit>
      1. org.apache.tajo.TajoTestingCluster.startMiniDFSCluster(TajoTestingCluster.java:195)
      2. org.apache.tajo.TajoTestingCluster.startMiniCluster(TajoTestingCluster.java:396)
      3. org.apache.tajo.TajoTestingCluster.startMiniCluster(TajoTestingCluster.java:368)
      4. org.apache.tajo.LocalTajoTestingUtility.setup(LocalTajoTestingUtility.java:71)
      5. org.apache.tajo.TpchTestBase.setUp(TpchTestBase.java:94)
      6. org.apache.tajo.TpchTestBase.<clinit>(TpchTestBase.java:51)
      7. org.apache.tajo.QueryTestCaseBase.<clinit>(QueryTestCaseBase.java:133)
      7 frames
    16. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:606)
      4 frames
    17. JUnit
      JUnitCore.run
      1. org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
      2. org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
      3. org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
      4. org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
      5. org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
      6. org.junit.runners.ParentRunner.run(ParentRunner.java:300)
      7. org.junit.runner.JUnitCore.run(JUnitCore.java:157)
      7 frames
    18. IntelliJ junit4 module
      JUnit4IdeaTestRunner.startRunnerWithArgs
      1. com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
      1 frame
    19. IDEA
      JUnitStarter.main
      1. com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
      2. com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
      2 frames
    20. Java RT
      Method.invoke
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      2. sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
      3. sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      4. java.lang.reflect.Method.invoke(Method.java:606)
      4 frames
    21. IDEA
      AppMain.main
      1. com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
      1 frame