[#MB-1072] java.util.ConcurrentModificationException in org.apache.activemq.broker.region.Queue.iterate()

FUSE Message Broker

java.util.ConcurrentModificationException in org.apache.activemq.broker.region.Queue.iterate()

Created: 31/Jan/12 04:49 PM Updated: 06/Feb/12 09:46 PM

Component/s:

broker

Affects Version/s:

None

Fix Version/s:

5.5.0-fuse-00-xx, 5.6.0-fuse-00-00, 5.5.1-fuse-02-02

Environment:

5.5.1 AMQ

External Issue URL:

https://issues.apache.org/jira/browse/AMQ-3700

Description

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The following stack was reproduced in AMQ 5.5.1 but not the Fuse Message Broker version.

Exception in thread "BrokerService[3561F026-E8F62746-2A202922-F17EADF0-7BCA8E67] Task-5053" java.util.ConcurrentModificationException
jvm 1    | 	at java.util.LinkedHashMap$LinkedHashIterator.nextEntry(LinkedHashMap.java:373)
jvm 1    | 	at java.util.LinkedHashMap$ValueIterator.next(LinkedHashMap.java:388)
jvm 1    | 	at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1376)
jvm 1    | 	at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:127)
jvm 1    | 	at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
jvm 1    | 	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
jvm 1    | 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
jvm 1    | 	at java.lang.Thread.run(Thread.java:662)

This issue is to audit the pagedInMessages LinkedHashMap and verify its protected sufficiently.

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Timothy Bish added a comment - 06/Feb/12 09:46 PM

Fix applied.