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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

Solutions on the web

via Atlassian JIRA by Mark Chaimungkalanont, 1 year ago
via Coderanch by Jeremy Severson, 1 year ago
This exception has no message.
via Coderanch by adithya narayan, 1 year ago
This exception has no message.
via GitHub by bittecnologia
, 2 years ago
This exception has no message.
via ws-juddi-user by niels@myplace.dk, 1 year ago
via ws-juddi-user by David Cahill, 1 year ago
java.lang.NullPointerException: 	at java.util.Hashtable.put(Hashtable.java:401)	at com.atlassian.jira.plugin.ext.subversion.revisions.RevisionIndexer.(RevisionIndexer.java:76)	at com.atlassian.jira.plugin.ext.subversion.MultipleSubversionRepositoryManagerImpl.setupEnvironment(MultipleSubversionRepositoryManagerImpl.java:70)	at com.atlassian.jira.plugin.ext.subversion.MultipleSubversionRepositoryManagerImpl.(MultipleSubversionRepositoryManagerImpl.java:30)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)	at java.lang.reflect.Constructor.newInstance(Constructor.java:494)	at org.picocontainer.defaults.InstantiatingComponentAdapter.newInstance(InstantiatingComponentAdapter.java:100)	at org.picocontainer.defaults.ConstructorInjectionComponentAdapter.instantiateComponent(ConstructorInjectionComponentAdapter.java:200)	at org.picocontainer.defaults.InstantiatingComponentAdapter.getComponentInstance(InstantiatingComponentAdapter.java:48)	at org.picocontainer.defaults.DecoratingComponentAdapter.getComponentInstance(DecoratingComponentAdapter.java:42)	at org.picocontainer.defaults.SynchronizedComponentAdapter.getComponentInstance(SynchronizedComponentAdapter.java:35)	at org.picocontainer.defaults.DecoratingComponentAdapter.getComponentInstance(DecoratingComponentAdapter.java:42)	at com.atlassian.jira.config.component.ProfilingComponentAdapter.getComponentInstance(ProfilingComponentAdapter.java:27)	at org.picocontainer.defaults.DefaultPicoContainer.getComponentInstancesOfType(DefaultPicoContainer.java:274)	at org.picocontainer.defaults.DefaultPicoContainer.getComponentInstances(DefaultPicoContainer.java:266)	at com.atlassian.jira.ComponentManager.eagerlyInstantiate(ComponentManager.java:297)	at com.atlassian.jira.ComponentManager.start(ComponentManager.java:212)	at com.atlassian.jira.upgrade.ConsistencyLauncher.contextInitialized(ConsistencyLauncher.java:25)	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3271)	at org.apache.catalina.core.StandardContext.start(StandardContext.java:3613)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)	at org.apache.catalina.core.StandardHost.start(StandardHost.java:754)	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188)	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:363)	at org.apache.catalina.core.StandardService.start(StandardService.java:497)	at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190)	at org.apache.catalina.startup.Catalina.start(Catalina.java:512)	at org.apache.catalina.startup.Catalina.execute(Catalina.java:400)	at org.apache.catalina.startup.Catalina.process(Catalina.java:180)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)	at java.lang.reflect.Method.invoke(Method.java:585)	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203)