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https://issues.apache.org/jira/browse/KARAF-4909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15974375#comment-15974375
]
Jean-Baptiste Onofré commented on KARAF-4909:
---------------------------------------------
I add a test to prevent the NPE, but it means you don't have the property:
{code}
group.bundle.sync=cluster
{code}
in the {{org.apache.karaf.cellar.groups.cfg}} file.
> NullPointerException in BundleSynchronizer.getSyncPolicy
> --------------------------------------------------------
>
> Key: KARAF-4909
> URL: https://issues.apache.org/jira/browse/KARAF-4909
> Project: Karaf
> Issue Type: Bug
> Components: cellar-bundle
> Affects Versions: cellar-4.0.3
> Reporter: Roland Hauser
> Assignee: Jean-Baptiste Onofré
> Fix For: cellar-4.0.4, cellar-4.1.0
>
>
> 2016-12-27 13:05:00,239 | INFO | 3]-nio2-thread-8 | ChannelSession
> | 161 - org.apache.sshd.core - 0.14.0 | Executing command:
> cluster:group-join 5fe8a639-a123-4f59-b384-7a1ecfa9bd98
> 2016-12-27 13:05:00,668 | ERROR | pool-39-thread-1 | EventDispatchTask
> | 91 - org.apache.karaf.cellar.core - 4.0.3 | Error while dispatching
> task
> java.lang.NullPointerException
> at
> org.apache.karaf.cellar.bundle.BundleSynchronizer.getSyncPolicy(BundleSynchronizer.java:338)[89:org.apache.karaf.cellar.bundle:4.0.3]
> at
> org.apache.karaf.cellar.bundle.BundleSynchronizer.sync(BundleSynchronizer.java:82)[89:org.apache.karaf.cellar.bundle:4.0.3]
> at
> org.apache.karaf.cellar.hazelcast.HazelcastGroupManager.registerGroup(HazelcastGroupManager.java:405)[93:org.apache.karaf.cellar.hazelcast:4.0.3]
> at
> org.apache.karaf.cellar.core.control.ManageGroupCommandHandler.joinGroup(ManageGroupCommandHandler.java:91)[91:org.apache.karaf.cellar.core:4.0.3]
> at
> org.apache.karaf.cellar.core.control.ManageGroupCommandHandler.execute(ManageGroupCommandHandler.java:41)[91:org.apache.karaf.cellar.core:4.0.3]
> at
> org.apache.karaf.cellar.core.control.ManageGroupCommandHandler.execute(ManageGroupCommandHandler.java:27)[91:org.apache.karaf.cellar.core:4.0.3]
> at
> org.apache.karaf.cellar.core.command.CommandHandler.handle(CommandHandler.java:40)[91:org.apache.karaf.cellar.core:4.0.3]
> at
> org.apache.karaf.cellar.core.command.CommandHandler.handle(CommandHandler.java:28)[91:org.apache.karaf.cellar.core:4.0.3]
> at
> org.apache.karaf.cellar.core.event.EventDispatchTask.run(EventDispatchTask.java:67)[91:org.apache.karaf.cellar.core:4.0.3]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_112]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_112]
> at java.lang.Thread.run(Thread.java:745)[:1.8.0_112]
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