java.lang.NullPointerException: This exception has no message.

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Apache's JIRA Issue Tracker by Min Zhou, 1 year ago
This exception has no message.
via Apache's JIRA Issue Tracker by Min Zhou, 1 year ago
This exception has no message.
via Stack Overflow by Raphael_LK
, 2 years ago
This exception has no message.
java.lang.NullPointerException:
at org.mortbay.jetty.servlet.ServletHolder.destroyInstance(ServletHolder.java:318)
at org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
at org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
at org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
at org.mortbay.jetty.handler.HandlerWrapper.doStop(HandlerWrapper.java:142)
at org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
at org.mortbay.jetty.handler.HandlerWrapper.doStop(HandlerWrapper.java:142)
at org.mortbay.jetty.handler.ContextHandler.doStop(ContextHandler.java:591)
at org.mortbay.component.AbstractLifeCycle.stop(AbstractLifeCycle.java:78)
at org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.stop(NameNodeHttpServer.java:160)
at org.apache.hadoop.hdfs.server.namenode.NameNode.stopHttpServer(NameNode.java:633)
at org.apache.hadoop.hdfs.server.namenode.NameNode.stopCommonServices(NameNode.java:589)
at org.apache.hadoop.hdfs.server.namenode.NameNode.stop(NameNode.java:732)
at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:688)
at org.apache.hadoop.hdfs.server.namenode.NameNode.(NameNode.java:669)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1254)
at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNode(MiniDFSCluster.java:893)
at org.apache.hadoop.hdfs.MiniDFSCluster.createNameNodesAndSetConf(MiniDFSCluster.java:784)
at org.apache.hadoop.hdfs.MiniDFSCluster.initMiniDFSCluster(MiniDFSCluster.java:642)
at org.apache.hadoop.hdfs.MiniDFSCluster.(MiniDFSCluster.java:334)
at org.apache.tajo.TajoTestingCluster.startMiniDFSCluster(TajoTestingCluster.java:195)
at org.apache.tajo.TajoTestingCluster.startMiniCluster(TajoTestingCluster.java:396)
at org.apache.tajo.TajoTestingCluster.startMiniCluster(TajoTestingCluster.java:368)
at org.apache.tajo.LocalTajoTestingUtility.setup(LocalTajoTestingUtility.java:71)
at org.apache.tajo.TpchTestBase.setUp(TpchTestBase.java:94)
at org.apache.tajo.TpchTestBase.(TpchTestBase.java:51)
at org.apache.tajo.QueryTestCaseBase.(QueryTestCaseBase.java:133)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)

Users with the same issue

You are the first who have seen this exception. Write a tip to help other users and build your expert profile.

Know the solutions? Share your knowledge to help other developers to debug faster.