[RIVER-402] NullPointerException in LookupCacheImpl.notifyServiceMap

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: River_2.1.2
• Fix Version/s: River_3.0.0
• Component/s: net_jini_lookup
• Assignee: Peter Firmstone
• Reporter: Neil Ferguson
• Created: 22/Dec/11 17:43
• Updated: 04/Dec/15 11:48
• Resolved: 09/Jan/12 13:37

Description

One of our automated tests fails periodically (roughly 1 in 5 times), due to the ServiceDiscoveryListener.serviceRemoved method not getting called sometimes. This seems to be due to a NullPointerException in LookupCacheImpl.notifyServiceMap, which seems to be triggered by us calling JoinManager.terminate. This is on Apache River 2.2.0.

Exception as follows:

java.lang.NullPointerException: null
at net.jini.lookup.ServiceDiscoveryManager$LookupCacheImpl.notifyServiceMap(ServiceDiscoveryManager.java:1890) ~[jini-ext-2.2.0.jar:na]
at net.jini.lookup.ServiceDiscoveryManager$LookupCacheImpl.access$300(ServiceDiscoveryManager.java:843) ~[jini-ext-2.2.0.jar:na]
at net.jini.lookup.ServiceDiscoveryManager$LookupCacheImpl$LookupListener.notify(ServiceDiscoveryManager.java:859) ~[jini-ext-2.2.0.jar:na]
at sun.reflect.GeneratedMethodAccessor42.invoke(Unknown Source) ~[na:na]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) ~[na:1.6.0_27]
at java.lang.reflect.Method.invoke(Method.java:597) ~[na:1.6.0_27]
at net.jini.jeri.BasicInvocationDispatcher.invoke(BasicInvocationDispatcher.java:1126) ~[jini-ext-2.2.0.jar:na]
at net.jini.jeri.BasicInvocationDispatcher.dispatch(BasicInvocationDispatcher.java:608) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.jeri.internal.runtime.Target$2.run(Target.java:487) ~[jini-ext-2.2.0.jar:na]
at net.jini.export.ServerContext.doWithServerContext(ServerContext.java:103) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.jeri.internal.runtime.Target.dispatch(Target.java:484) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.jeri.internal.runtime.Target.access$000(Target.java:57) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.jeri.internal.runtime.Target$1.run(Target.java:464) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.start.AggregatePolicyProvider$AggregateSecurityContext$2.run(AggregatePolicyProvider.java:527) ~[start-2.2.0.jar:na]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.6.0_27]
at com.sun.jini.jeri.internal.runtime.Target.dispatch(Target.java:461) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.jeri.internal.runtime.Target.dispatch(Target.java:426) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.jeri.internal.runtime.DgcRequestDispatcher.dispatch(DgcRequestDispatcher.java:210) ~[jini-ext-2.2.0.jar:na]
at net.jini.jeri.connection.ServerConnectionManager$Dispatcher.dispatch(ServerConnectionManager.java:147) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.jeri.internal.mux.MuxServer$1$1.run(MuxServer.java:244) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.start.AggregatePolicyProvider$AggregateSecurityContext$1.run(AggregatePolicyProvider.java:513) ~[start-2.2.0.jar:na]
at java.security.AccessController.doPrivileged(Native Method) ~[na:1.6.0_27]
at com.sun.jini.jeri.internal.mux.MuxServer$1.run(MuxServer.java:241) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.thread.ThreadPool$Worker.run(ThreadPool.java:136) ~[jini-ext-2.2.0.jar:na]
at java.lang.Thread.run(Thread.java:662) ~[na:1.6.0_27]
at com.sun.jini.jeri.internal.runtime.Util._________EXCEPTION_RECEIVED_FROM_SERVER_________(Util.java:108) ~[jini-ext-2.2.0.jar:na]
at com.sun.jini.jeri.internal.runtime.Util.exceptionReceivedFromServer(Util.java:101) ~[jini-ext-2.2.0.jar:na]
at net.jini.jeri.BasicInvocationHandler.unmarshalThrow(BasicInvocationHandler.java:1303) ~[jini-ext-2.2.0.jar:na]
at net.jini.jeri.BasicInvocationHandler.invokeRemoteMethodOnce(BasicInvocationHandler.java:832) ~[jini-ext-2.2.0.jar:na]
at net.jini.jeri.BasicInvocationHandler.invokeRemoteMethod(BasicInvocationHandler.java:659) ~[jini-ext-2.2.0.jar:na]
at net.jini.jeri.BasicInvocationHandler.invoke(BasicInvocationHandler.java:528) ~[jini-ext-2.2.0.jar:na]
at $Proxy28.notify(Unknown Source) ~[na:na]
at com.sun.jini.reggie.RegistrarImpl$EventTask.run(RegistrarImpl.java:1863) ~[reggie-2.2.0.jar:na]
at com.sun.jini.thread.TaskManager$TaskThread.run(TaskManager.java:331) [jini-ext-2.2.0.jar:na]