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https://issues.apache.org/jira/browse/QPID-3743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13210162#comment-13210162
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Robbie Gemmell commented on QPID-3743:
--------------------------------------
Updated title to reflect new scope. It has not been possible to reproduce the
NPE seen above, and Rob is unsure it was on a clean trunk following some
changes to persistence etc. What is clear though is that the NPE should only be
possible if an exception was caught and null returned, where really the
exception should have been thrown. This JIRA will now be used to make that
change.
> [Java Broker] Remove catching of Exception during metadata retrieval in BDB
> store
> ---------------------------------------------------------------------------------
>
> Key: QPID-3743
> URL: https://issues.apache.org/jira/browse/QPID-3743
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker, Java Broker BDB Store
> Reporter: Rob Godfrey
> Assignee: Alex Rudyy
> Priority: Blocker
> Fix For: 0.15
>
> Attachments:
> 0001-QPID-3743-Remove-try-catch-block-on-converting-BDB-m.patch
>
>
> Occurred while using BDB store with more messages than could be held in RAM
> (1 million 1Kb messages in a 2Gb heap on a 64-bit VM).
> ########################################################################
> #
> # Unhandled Exception java.lang.NullPointerException in Thread
> pool-3-thread-16
> #
> # Exiting
> #
> ########################################################################
> java.lang.NullPointerException
> at
> org.apache.qpid.server.message.MessageTransferMessage.getExpiration(MessageTransferMessage.java:89)
> at
> org.apache.qpid.server.queue.QueueEntryImpl.expired(QueueEntryImpl.java:151)
> at
> org.apache.qpid.server.queue.SimpleAMQQueue.getNextAvailableEntry(SimpleAMQQueue.java:1846)
> at
> org.apache.qpid.server.queue.SimpleAMQQueue.attemptDelivery(SimpleAMQQueue.java:1781)
> at
> org.apache.qpid.server.queue.SimpleAMQQueue.processQueue(SimpleAMQQueue.java:1964)
> at org.apache.qpid.server.queue.QueueRunner.run(QueueRunner.java:77)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> at java.lang.Thread.run(Thread.java:722)
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