[infinispan-issues] [JBoss JIRA] (ISPN-3166) BackupReceiverRepositoryImpl generates NPE on cache shutdown

[Richard Achmatowicz (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-3166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12778556#comment-12778556 ] 

Richard Achmatowicz commented on ISPN-3166:
-------------------------------------------

Example:

{noformat}
16:25:23,290 INFO  [org.jboss.as.clustering.infinispan] (MSC service thread 1-6) JBAS010282: Stopped repl cache from web container
16:25:23,290 DEBUG [org.infinispan.xsite.BackupReceiverRepositoryImpl] (MSC service thread 1-6) Processing cache stop: EventImpl{type=CACHE_STOPPED, newMembers=null, oldMembers=null, localAddress=null, viewId=0, subgroupsMerged=null, mergeView=false}. Cache name: 'repl'
16:25:23,291 DEBUG [org.infinispan.xsite.BackupReceiverRepositoryImpl] (MSC service thread 1-6) Processing entry SiteCachePair{site='LON', cache='repl'}
16:25:23,291 WARN  [org.jboss.msc.service.fail] (MSC service thread 1-6) MSC000004: Failure during stop of service jboss.infinispan.web.repl: org.infinispan.CacheException: Caught exception [java.lang.NullPointerException] while invoking method [public void org.infinispan.xsite.BackupReceiverRepositoryImpl.cacheStopped(org.infinispan.notifications.cachemanagerlistener.event.CacheStoppedEvent)] on listener instance: org.infinispan.xsite.BackupReceiverRepositoryImpl at 12c1a513
	at org.infinispan.notifications.AbstractListenerImpl$ListenerInvocation$1.run(AbstractListenerImpl.java:218)
	at org.infinispan.util.concurrent.WithinThreadExecutor.execute(WithinThreadExecutor.java:44)
	at org.infinispan.notifications.AbstractListenerImpl$ListenerInvocation.invoke(AbstractListenerImpl.java:238)
	at org.infinispan.notifications.cachemanagerlistener.CacheManagerNotifierImpl.notifyCacheStopped(CacheManagerNotifierImpl.java:135)
	at org.infinispan.factories.ComponentRegistry.stop(ComponentRegistry.java:250)
	at org.infinispan.CacheImpl.stop(CacheImpl.java:608)
	at org.infinispan.CacheImpl.stop(CacheImpl.java:603)
	at org.infinispan.AbstractDelegatingCache.stop(AbstractDelegatingCache.java:348)
	at org.jboss.as.clustering.infinispan.subsystem.CacheService.stop(CacheService.java:96)
	at org.jboss.as.clustering.msc.AsynchronousService.stop(AsynchronousService.java:114)
	at org.jboss.msc.service.ServiceControllerImpl$StopTask.stopService(ServiceControllerImpl.java:2082) [jboss-msc-1.1.2.Final.jar:1.1.2.Final]
	at org.jboss.msc.service.ServiceControllerImpl$StopTask.run(ServiceControllerImpl.java:2043) [jboss-msc-1.1.2.Final.jar:1.1.2.Final]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) [rt.jar:1.7.0_04]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) [rt.jar:1.7.0_04]
	at java.lang.Thread.run(Thread.java:722) [rt.jar:1.7.0_04]
Caused by: java.lang.NullPointerException
	at org.infinispan.xsite.BackupReceiverRepositoryImpl.cacheStopped(BackupReceiverRepositoryImpl.java:75)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_04]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_04]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_04]
	at java.lang.reflect.Method.invoke(Method.java:601) [rt.jar:1.7.0_04]
	at org.infinispan.notifications.AbstractListenerImpl$ListenerInvocation$1.run(AbstractListenerImpl.java:213)
	... 14 more

16:25:23,296 INFO  [org.infinispan.remoting.transport.jgroups.JGroupsTransport] (MSC service thread 1-5) ISPN000080: Disconnecting and closing JGroups Channel

{noformat}

                
> BackupReceiverRepositoryImpl generates NPE on cache shutdown
> ------------------------------------------------------------
>
>                 Key: ISPN-3166
>                 URL: https://issues.jboss.org/browse/ISPN-3166
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Cross-Site Replication
>    Affects Versions: 5.3.0.Beta2, 5.3.0.CR1
>            Reporter: Richard Achmatowicz
>            Assignee: Mircea Markus
>
> In the method BackupReceiverRepositoryImpl.getBackupCachemanager(), when creating a SiteCachePair for a cache with no explicitly configured backup, the localCacheName is not being set. This results in an NPE when shutting down the cache.
>   

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