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 Hibernate JIRA by Stefan Norberg, 2 years ago
via Hibernate JIRA by Stefan Norberg, 1 year ago
via signserver by sqch17
, 2 years ago
java.lang.NullPointerException
via signserver by dottzero
, 2 years ago
java.lang.NullPointerException
via gilead by kamikadzeagh
, 2 years ago
java.lang.NullPointerException
via Coderanch by jina das, 1 year ago
java.lang.NullPointerException: 	at com.weirdstuff.Player.hashCode(Player.java:83)	at java.util.HashMap.hash(HashMap.java:264)	at java.util.HashMap.put(HashMap.java:382)	at java.util.HashSet.add(HashSet.java:194)	at java.util.AbstractCollection.addAll(AbstractCollection.java:318)	at org.hibernate.collection.PersistentSet.endRead(PersistentSet.java:273)	at org.hibernate.engine.CollectionLoadContext.endLoadingCollection(CollectionLoadContext.java:183)	at org.hibernate.engine.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:268)	at org.hibernate.engine.CollectionLoadContext.endLoadingCollections(CollectionLoadContext.java:249)	at org.hibernate.loader.Loader.endCollectionLoad(Loader.java:866)	at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:853)	at org.hibernate.loader.Loader.doQuery(Loader.java:717)	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)	at org.hibernate.loader.Loader.loadEntity(Loader.java:1785)	at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48)	at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42)	at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:2821)	at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:370)	at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:351)	at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:122)	at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:178)	at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:86)	at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:871)	at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:839)	at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:266)	at org.hibernate.type.EntityType.resolve(EntityType.java:303)	at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:116)	at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:842)	at org.hibernate.loader.Loader.doQuery(Loader.java:717)	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)	at org.hibernate.loader.Loader.doList(Loader.java:2145)	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)	at org.hibernate.loader.Loader.list(Loader.java:2024)	at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:392)	at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:333)	at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)	at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1114)	at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)	at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:53)	at com.weirdstuff.FacadeBean.getPlayers(FacadeBean.java:17)	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.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)	at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)	at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)	at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:225)	at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)	at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)	at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)	at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)	at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:412)	at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)	at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:190)	at org.jboss.remoting.Client.invoke(Client.java:525)	at org.jboss.remoting.Client.invoke(Client.java:488)	at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:55)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:65)	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)	at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)	at $Proxy0.getPlayers(Unknown Source)	at com.weirdstuff.TestHashCodeClient.testGetPlayer(TestHashCodeClient.java:51)	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 junit.framework.TestCase.runTest(TestCase.java:154)	at junit.framework.TestCase.runBare(TestCase.java:127)	at junit.framework.TestResult$1.protect(TestResult.java:106)	at junit.framework.TestResult.runProtected(TestResult.java:124)	at junit.framework.TestResult.run(TestResult.java:109)	at junit.framework.TestCase.run(TestCase.java:118)	at junit.framework.TestSuite.runTest(TestSuite.java:208)	at junit.framework.TestSuite.run(TestSuite.java:203)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)