[QPID-7956] [Java Broker] Memory compactor threw NPE during Broker shutdown

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: qpid-java-broker-7.0.0
• Fix Version/s: qpid-java-broker-7.0.0
• Component/s: Broker-J
• Assignee: Unassigned
• Reporter: Keith Wall
• Created: 04/Oct/17 12:41
• Updated: 14/Nov/17 22:00
• Resolved: 10/Oct/17 09:19

Description

The following exception was received during shutdown of the Broker (^C from the terminal). There was a significant queue depth enqueued at the time.

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)