911065 – Show error message instead of NPE

Bug 911065 - Show error message instead of NPE

Summary: Show error message instead of NPE

Keywords:
Status:	CLOSED CURRENTRELEASE
Alias:	None
Product:	JBoss Enterprise Application Platform 6
Classification:	JBoss
Component:	Clustering
Sub Component:
Version:	6.1.0
Hardware:	Unspecified
OS:	Unspecified
Priority:	unspecified
Severity:	unspecified
Target Milestone:	ER3
Target Release:	EAP 6.1.0
Assignee:	Paul Ferraro
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2013-02-14 10:03 UTC by Jitka Kozana
Modified:	2013-07-23 18:44 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Type:	Bug
Embargoed:

Attachments	(Terms of Use)

Links
System	ID	Private	Priority	Status	Summary	Last Updated
Red Hat Issue Tracker	AS7-6691	0	Major	Resolved	SingletonService.getValue() throws NPE if not started	2013-05-28 21:42:58 UTC

Description Jitka Kozana 2013-02-14 10:03:45 UTC

EAP 6.1.0.DR4. 
Failover testing, 4-node cluster, singleton service is accessed via stateless SB from a standalone client. If a clients calls this stateless SB shortly after a node was brought back to life (and the app is not started yet), than user will get NPE.

Server is starting:
[JBossINF] [0m[0m04:18:12,356 INFO  [org.jboss.test.singletonservice.SingletonStartupBean] (ServerService Thread Pool -- 53) Service controller state is DOWN, waiting for transition to UP
[JBossINF] [0m[0m04:18:12,608 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 54) ISPN000078: Starting JGroups Channel
[JBossINF] [0m[0m04:18:12,610 INFO  [stdout] (ServerService Thread Pool -- 54) 
[JBossINF] [0m[0m04:18:12,611 INFO  [stdout] (ServerService Thread Pool -- 54) -------------------------------------------------------------------
[JBossINF] [0m[0m04:18:12,611 INFO  [stdout] (ServerService Thread Pool -- 54) GMS: address=perf18/singleton, cluster=singleton, physical address=10.16.90.54:55200
[JBossINF] [0m[0m04:18:12,611 INFO  [stdout] (ServerService Thread Pool -- 54) -------------------------------------------------------------------
[JBossINF] [0m[0m04:18:12,674 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 54) ISPN000094: Received new cluster view: [perf21/singleton|5] [perf21/singleton, perf20/singleton, perf19/singleton, perf18/singleton]

Client calls the SLSB:
[JBossINF] [0m[0m04:18:12,774 INFO  
[org.jboss.test.singletonservice.ServiceAccessBean] (EJB default - 1) getNodeNameOfService() is called()

[JBossINF] [0m[0m04:18:12,775 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (ServerService Thread Pool -- 54) ISPN000079: Cache local address is perf18/singleton, physical addresses are [10.16.90.54:55200]
[JBossINF] [0m[0m04:18:12,779 INFO  [org.infinispan.factories.TransactionManagerFactory] (ServerService Thread Pool -- 54) ISPN000161: Using a batchMode transaction manager
[JBossINF] [0m[31m04:18:12,778 ERROR [org.jboss.as.ejb3.invocation] (EJB default - 1) JBAS014134: EJB Invocation failed on component ServiceAccessBean for method public abstract java.lang.String org.jboss.test.singletonservice.ServiceAccess.getNodeNameOfService(): javax.ejb.EJBException: java.lang.NullPointerException
[JBossINF] 	at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:165) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:250) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:315) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:214) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ejb3.remote.EJBRemoteTransactionPropagatingInterceptor.processInvocation(EJBRemoteTransactionPropagatingInterceptor.java:79) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:65) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165) [jboss-as-ee-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.invokeMethod(MethodInvocationMessageHandler.java:321) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$100(MethodInvocationMessageHandler.java:69) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:202) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439) [rt.jar:1.6.0_38]
[JBossINF] 	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [rt.jar:1.6.0_38]
[JBossINF] 	at java.util.concurrent.FutureTask.run(FutureTask.java:138) [rt.jar:1.6.0_38]
[JBossINF] 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [rt.jar:1.6.0_38]
[JBossINF] 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [rt.jar:1.6.0_38]
[JBossINF] 	at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_38]
[JBossINF] 	at org.jboss.threads.JBossThread.run(JBossThread.java:122)
[JBossINF] Caused by: java.lang.NullPointerException
[JBossINF] 	at org.jboss.as.clustering.singleton.SingletonService.getValue(SingletonService.java:215) [jboss-as-clustering-singleton-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.clustering.singleton.SingletonService.getValue(SingletonService.java:60) [jboss-as-clustering-singleton-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.clustering.msc.AsynchronousService.getValue(AsynchronousService.java:72)
[JBossINF] 	at org.jboss.msc.service.ServiceControllerImpl.getValue(ServiceControllerImpl.java:1203) [jboss-msc-1.0.4.GA.jar:1.0.4.GA]
[JBossINF] 	at org.jboss.test.singletonservice.ServiceAccessBean.getNodeNameOfService(ServiceAccessBean.java:39) [SStest-ejb.jar:]
[JBossINF] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_38]
[JBossINF] 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_38]
[JBossINF] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_38]
[JBossINF] 	at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_38]
[JBossINF] 	at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72) [jboss-as-ee-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:58) [jboss-as-ee-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:129) [jboss-as-weld-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:137) [jboss-as-weld-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:58) [jboss-as-ee-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:58) [jboss-as-ee-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47)
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:94) [jboss-as-weld-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.1.Final.jar:1.1.1.Final]
[JBossINF] 	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:248) [jboss-as-ejb3-7.2.0.Alpha1-redhat-4.jar:7.2.0.Alpha1-redhat-4]
[JBossINF] 	... 29 more
[JBossINF] [0m[0m04:18:12,796 INFO  [org.infinispan.jmx.CacheJmxRegistration] (ServerService Thread Pool -- 54) ISPN000031: MBeans were successfully registered to the platform MBean server.
[JBossINF] [0m[0m04:18:12,828 INFO  [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 54) JBAS010281: Started default cache from singleton container
[JBossINF] [0m[0m04:18:12,830 INFO  [org.jboss.as.clustering] (MSC service thread 1-16) JBAS010238: Number of cluster members: 4
[JBossINF] [0m[0m04:18:12,836 INFO  [org.jboss.test.singletonservice.SingletonStartupBean] (ServerService Thread Pool -- 53) Service controller state is STARTING, waiting for transition to UP
The startup is finished ^^

[JBossINF] [0m[0m04:18:12,853 INFO  [org.jboss.as.clustering.singleton] (ServerService Thread Pool -- 54) JBAS010342: perf21/singleton elected as the singleton provider of the jboss.test.myservice service
[JBossINF] [0m[0m04:18:12,855 INFO  [org.jboss.test.singletonservice.SingletonStartupBean] (ServerService Thread Pool -- 53) Service controller state is now UP

The client gets:
avax.ejb.EJBException: java.lang.NullPointerException>
        javax.ejb.EJBException: java.lang.NullPointerException
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleExceptionInOurTx(CMTTxInterceptor.java:165)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:250)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:315)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:214)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.remote.EJBRemoteTransactionPropagatingInterceptor.processInvocation(EJBRemoteTransactionPropagatingInterceptor.java:79)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:65)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
	at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.invokeMethod(MethodInvocationMessageHandler.java:321)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$100(MethodInvocationMessageHandler.java:69)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:202)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
	at org.jboss.threads.JBossThread.run(JBossThread.java:122)
	at ...asynchronous invocation...(Unknown Source)
	at org.jboss.ejb.client.remoting.InvocationExceptionResponseHandler$MethodInvocationExceptionResultProducer.getResult(InvocationExceptionResponseHandler.java:99)
	at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:272)
	at org.jboss.ejb.client.EJBHomeCreateInterceptor.handleInvocationResult(EJBHomeCreateInterceptor.java:84)
	at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:274)
	at org.jboss.ejb.client.TransactionInterceptor.handleInvocationResult(TransactionInterceptor.java:46)
	at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:274)
	at org.jboss.ejb.client.ReceiverInterceptor.handleInvocationResult(ReceiverInterceptor.java:129)
	at org.jboss.ejb.client.EJBClientInvocationContext.getResult(EJBClientInvocationContext.java:262)
	at org.jboss.ejb.client.EJBClientInvocationContext.awaitResponse(EJBClientInvocationContext.java:437)
	at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:182)
	at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:161)
	at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:124)
	at $Proxy0.getNodeNameOfService(Unknown Source)
	at org.jboss.smartfrog.clustering.ejb3.SSAccessProcessorFactoryImpl$SSAccessRequestProcessor.processRequest(SSAccessProcessorFactoryImpl.java:88)
	at org.jboss.smartfrog.loaddriver.CompoundRequestProcessorFactoryImpl$CompoundRequestProcessor.processRequest(CompoundRequestProcessorFactoryImpl.java:52)
	at org.jboss.smartfrog.loaddriver.Runner.run(Runner.java:87)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
	at org.jboss.as.clustering.singleton.SingletonService.getValue(SingletonService.java:215)
	at org.jboss.as.clustering.singleton.SingletonService.getValue(SingletonService.java:60)
	at org.jboss.as.clustering.msc.AsynchronousService.getValue(AsynchronousService.java:72)
	at org.jboss.msc.service.ServiceControllerImpl.getValue(ServiceControllerImpl.java:1203)
	at org.jboss.test.singletonservice.ServiceAccessBean.getNodeNameOfService(ServiceAccessBean.java:39)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.jboss.as.ee.component.ManagedReferenceMethodInterceptorFactory$ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptorFactory.java:72)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53)
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:58)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374)
	at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.doMethodInterception(Jsr299BindingsInterceptor.java:129)
	at org.jboss.as.weld.ejb.Jsr299BindingsInterceptor.processInvocation(Jsr299BindingsInterceptor.java:137)
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:58)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53)
	at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:58)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.jpa.interceptor.SBInvocationInterceptor.processInvocation(SBInvocationInterceptor.java:47)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.weld.ejb.EjbRequestScopeActivationInterceptor.processInvocation(EjbRequestScopeActivationInterceptor.java:94)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
	at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.pool.PooledInstanceInterceptor.processInvocation(PooledInstanceInterceptor.java:51)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:248)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:315)
	at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:214)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.remote.EJBRemoteTransactionPropagatingInterceptor.processInvocation(EJBRemoteTransactionPropagatingInterceptor.java:79)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:65)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45)
	at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288)
	at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
	at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:165)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.invokeMethod(MethodInvocationMessageHandler.java:321)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$100(MethodInvocationMessageHandler.java:69)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:202)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
	at java.util.concurrent.FutureTask.run(FutureTask.java:138)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
	at org.jboss.threads.JBossThread.run(JBossThread.java:122)

See the server log here:
https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/eap-6x-failover-jvmkill-dist-sync-ha-ss/1/console-perf18/
Client: https://jenkins.mw.lab.eng.bos.redhat.com/hudson/job/eap-6x-failover-jvmkill-dist-sync-ha-ss/1/console-perf17/

Comment 1 Jitka Kozana 2013-02-14 10:05:59 UTC

The client should not see the NPE, but some sort of error message: EJB not started yet or similar.

Comment 2 Paul Ferraro 2013-02-21 16:48:17 UTC

Where is "org.jboss.test.singletonservice.ServiceAccessBean"?  I'm not sure this test is setup correctly.  Service.getValue() should never be called on a service that is not started.

Comment 3 Jitka Kozana 2013-02-25 10:14:03 UTC

ServiceAccessBean is used by a standalone client to access the service. 

The bean code is basically the same as this EJB in this quickstart:
https://github.com/jboss-jdf/jboss-as-quickstart/blob/master/cluster-ha-singleton/service/src/main/java/org/jboss/as/quickstarts/cluster/hasingleton/service/ejb/ServiceAccessBean.java

The method ServiceController<?> getService(ServiceName serviceName) returns service regardless of its state. The state is not checked.

So if the ServiceAccessBean should therefore check the state of the service, to prevent this NPE, then this should be documented. And the quickstart changed too.

Comment 4 Paul Ferraro 2013-03-08 00:19:16 UTC

If the service is not started, the correct response for SingletonService.getValue() is an IllegalStateException.

Comment 5 Paul Ferraro 2013-03-08 03:08:38 UTC

https://github.com/jbossas/jboss-eap/pull/33

Comment 6 Jitka Kozana 2013-03-26 12:18:11 UTC

Verified during 6.1.0.ER3 testing cycle.

Comment 9 mark yarborough 2013-07-23 18:44:49 UTC

Details inside vpn: https://post-office.corp.redhat.com/mailman/private/eap-pm-list/2013-July/msg00105.html

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