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Posted to dev@activemq.apache.org by "Wojciech Oczkowski (Created) (JIRA)" <ji...@apache.org> on 2012/03/21 15:59:41 UTC
[jira] [Created] (AMQ-3782) FailoverTransport throws NPE
FailoverTransport throws NPE
----------------------------
Key: AMQ-3782
URL: https://issues.apache.org/jira/browse/AMQ-3782
Project: ActiveMQ
Issue Type: Bug
Components: Transport
Affects Versions: 5.2.0
Environment: debian java-6-sun activemq 5.2
Reporter: Wojciech Oczkowski
Failover transport occasionally throws NullPointerException
INFO | jvm 1 | 2012/03/19 09:25:05 | Exception in thread "ActiveMQ Failover Worker: 2009192672" java.lang.NullPointerException
INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.transport.failover.FailoverTransport$2.iterate(FailoverTransport.java:125)
INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
It seems like DedicatedTaskRunner starts Thread before FailoverTransport finish initializing reconnectTask field.
Same code is present in 5.5.1 so it's possible that same bug is out there
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[jira] [Resolved] (AMQ-3782) FailoverTransport throws NPE
Posted by "Timothy Bish (Resolved) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/AMQ-3782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Timothy Bish resolved AMQ-3782.
-------------------------------
Resolution: Fixed
Fix Version/s: 5.6.0
Assignee: Timothy Bish
Added a check to ensure no access to reconnectTask when its potentially null.
> FailoverTransport throws NPE
> ----------------------------
>
> Key: AMQ-3782
> URL: https://issues.apache.org/jira/browse/AMQ-3782
> Project: ActiveMQ
> Issue Type: Bug
> Components: Transport
> Affects Versions: 5.2.0
> Environment: debian java-6-sun activemq 5.2
> Reporter: Wojciech Oczkowski
> Assignee: Timothy Bish
> Fix For: 5.6.0
>
>
> Failover transport occasionally throws NullPointerException
> INFO | jvm 1 | 2012/03/19 09:25:05 | Exception in thread "ActiveMQ Failover Worker: 2009192672" java.lang.NullPointerException
> INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.transport.failover.FailoverTransport$2.iterate(FailoverTransport.java:125)
> INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
> INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
> It seems like DedicatedTaskRunner starts Thread before FailoverTransport finish initializing reconnectTask field.
> Same code is present in 5.5.1 so it's possible that same bug is out there
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[jira] [Commented] (AMQ-3782) FailoverTransport throws NPE
Posted by "Timothy Bish (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/AMQ-3782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13234798#comment-13234798 ]
Timothy Bish commented on AMQ-3782:
-----------------------------------
Do you have a test case that can reproduce this. I don't really see a way in the current code that this could happen.
> FailoverTransport throws NPE
> ----------------------------
>
> Key: AMQ-3782
> URL: https://issues.apache.org/jira/browse/AMQ-3782
> Project: ActiveMQ
> Issue Type: Bug
> Components: Transport
> Affects Versions: 5.2.0
> Environment: debian java-6-sun activemq 5.2
> Reporter: Wojciech Oczkowski
>
> Failover transport occasionally throws NullPointerException
> INFO | jvm 1 | 2012/03/19 09:25:05 | Exception in thread "ActiveMQ Failover Worker: 2009192672" java.lang.NullPointerException
> INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.transport.failover.FailoverTransport$2.iterate(FailoverTransport.java:125)
> INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.thread.DedicatedTaskRunner.runTask(DedicatedTaskRunner.java:98)
> INFO | jvm 1 | 2012/03/19 09:25:05 | at org.apache.activemq.thread.DedicatedTaskRunner$1.run(DedicatedTaskRunner.java:36)
> It seems like DedicatedTaskRunner starts Thread before FailoverTransport finish initializing reconnectTask field.
> Same code is present in 5.5.1 so it's possible that same bug is out there
--
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