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https://issues.apache.org/jira/browse/QPID-5241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Rudyy resolved QPID-5241.
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Resolution: Fixed
The changes look good
> [Java Broker] JMX Management can cause NPE in case of premature shutdown
> ------------------------------------------------------------------------
>
> Key: QPID-5241
> URL: https://issues.apache.org/jira/browse/QPID-5241
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.25
> Reporter: Keith Wall
> Assignee: Alex Rudyy
> Priority: Minor
> Fix For: 0.25
>
>
> As highlighted by the BDB HA Management tests on Jenkins CI, if the broker
> needs to shutdown prematurely during its startup sequence, the stopping of
> the JMXManagement module may cause a spurious NPE.
>
> {noformat}
> BROKER: UNKNOWN
> nodetestRestartNodeWithNewPortNumberWithoutFirstCallingUpdateAddressThrowsAnException10005(-1)
> 2013-10-16 02:19:46,749 DEBUG [server.configuration.updater.TaskExecutor]
> Performing task ChangeStateTask [object=BrokerAdapter
> [id=9bb0597b-4809-4245-890b-c4e48a7f3a14, name=Broker], expectedState=null,
> desiredState=STOPPED]
> BROKER: UNKNOWN
> nodetestRestartNodeWithNewPortNumberWithoutFirstCallingUpdateAddressThrowsAnException10005(-1)
> 2013-10-16 02:19:46,752 ERROR [server.model.adapter.BrokerAdapter] Failed to
> stop JMXManagement [id=89ff5ea6-9cbe-48ef-8b7d-41bb05a3e21f,
> name=MANAGEMENT-JMX]
> BROKER: java.lang.NullPointerException
> BROKER: at
> org.apache.qpid.server.jmx.JMXManagement.stop(JMXManagement.java:233)
> BROKER: at
> org.apache.qpid.server.jmx.JMXManagement.setState(JMXManagement.java:119)
> BROKER: at
> org.apache.qpid.server.model.adapter.AbstractAdapter.setDesiredState(AbstractAdapter.java:122)
> BROKER: at
> org.apache.qpid.server.model.adapter.BrokerAdapter.changeState(BrokerAdapter.java:919)
> BROKER: at
> org.apache.qpid.server.model.adapter.BrokerAdapter.setState(BrokerAdapter.java:892)
> BROKER: at
> org.apache.qpid.server.model.adapter.AbstractAdapter.setDesiredState(AbstractAdapter.java:122)
> BROKER: at
> org.apache.qpid.server.configuration.updater.ChangeStateTask.call(ChangeStateTask.java:59)
> BROKER: at
> org.apache.qpid.server.configuration.updater.ChangeStateTask.call(ChangeStateTask.java:28)
> BROKER: at
> org.apache.qpid.server.configuration.updater.TaskExecutor.executeTask(TaskExecutor.java:213)
> BROKER: at
> org.apache.qpid.server.configuration.updater.TaskExecutor.access$200(TaskExecutor.java:46)
> BROKER: at
> org.apache.qpid.server.configuration.updater.TaskExecutor$CallableWrapper$1.run(TaskExecutor.java:252)
> BROKER: at java.security.AccessController.doPrivileged(Native Method)
> BROKER: at javax.security.auth.Subject.doAs(Subject.java:396)
> BROKER: at
> org.apache.qpid.server.configuration.updater.TaskExecutor$CallableWrapper.call(TaskExecutor.java:247)
> BROKER: at
> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
> BROKER: at java.util.concurrent.FutureTask.run(FutureTask.java:138)
> BROKER: at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> BROKER: at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> BROKER: at java.lang.Thread.run(Thread.java:662)
> {noformat}
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