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https://issues.apache.org/jira/browse/QPID-7956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lorenz Quack resolved QPID-7956.
--------------------------------
Resolution: Fixed
Keith and I paired on this.
> [Java Broker] Memory compactor threw NPE during Broker shutdown
> ---------------------------------------------------------------
>
> Key: QPID-7956
> URL: https://issues.apache.org/jira/browse/QPID-7956
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: qpid-java-broker-7.0.0
> Reporter: Keith Wall
> Fix For: qpid-java-broker-7.0.0
>
>
> The following exception was received during shutdown of the Broker (^C from
> the terminal). There was a significant queue depth enqueued at the time.
> {noformat}
> 2017-10-04 04:49:54,848 ERROR [broker-Broker-pool-0]
> (o.a.q.s.u.HousekeepingExecutor) - Housekeeping task threw an exception:
> java.lang.NullPointerException: null
> at
> org.apache.qpid.server.virtualhost.AbstractVirtualHost.reallocateMessages(AbstractVirtualHost.java:1390)
> at
> org.apache.qpid.server.model.BrokerImpl.compactMemoryInternal(BrokerImpl.java:1245)
> at
> org.apache.qpid.server.model.BrokerImpl.checkDirectMemoryUsage(BrokerImpl.java:447)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {noformat}
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