[jira] Assigned: (QPID-1454) NullPointerException in AMQProtocolHandler

["Martin Ritchie (JIRA)" <qp...@incubator.apache.org>]

     [ https://issues.apache.org/jira/browse/QPID-1454?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Martin Ritchie reassigned QPID-1454:
------------------------------------

    Assignee: Aidan Skinner  (was: Martin Ritchie)

Aidan, can you review this change.

There is no test as this is a race condition change. 

The test would change the value of _failoverLatch between the null check and the await() call.

I can write a multi hreaded test that would do this but it it would not be guaranteed to show the problem.

> NullPointerException in AMQProtocolHandler
> ------------------------------------------
>
>                 Key: QPID-1454
>                 URL: https://issues.apache.org/jira/browse/QPID-1454
>             Project: Qpid
>          Issue Type: Bug
>          Components: Java Client
>            Reporter: Martin Ritchie
>            Assignee: Aidan Skinner
>             Fix For: M4
>
>
> During a test run I managed to get this:
> java.lang.NullPointerException
>         at org.apache.qpid.client.protocol.AMQProtocolHandler.blockUntilNotFailingOver(AMQProtocolHandler.java:779)
>         at org.apache.qpid.client.AMQConnection.blockUntilNotFailingOver(AMQConnection.java:1214)
>         at org.apache.qpid.client.AMQConnectionDelegate_8_0.executeRetrySupport(AMQConnectionDelegate_8_0.java:257)
>         at org.apache.qpid.client.AMQConnection.executeRetrySupport(AMQConnection.java:634)
>         at org.apache.qpid.client.failover.FailoverRetrySupport.execute(FailoverRetrySupport.java:102)
>         at org.apache.qpid.client.AMQSession.createConsumerImpl(AMQSession.java:1648)
>         at org.apache.qpid.client.AMQSession.createConsumer(AMQSession.java:837)
>         at org.apache.qpid.server.security.acl.SimpleACLTest.testServerPublishInvalidQueueSuccess(SimpleACLTest.java:616)
>         at org.apache.qpid.test.utils.QpidTestCase.runBare(QpidTestCase.java:188)
>         at org.apache.qpid.test.utils.QpidTestCase.run(QpidTestCase.java:222)

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