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https://issues.apache.org/jira/browse/CXF-6825?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15187075#comment-15187075
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ASF GitHub Bot commented on CXF-6825:
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Github user yotammadem commented on the pull request:
https://github.com/apache/cxf/pull/119#issuecomment-194292794
What do you mean by invalid?
I understand that it can return null because it didn't find the thread in
the map
but do you think it is really possible for it to return something else?
(in the case of null my code is treating it well)
> Performance bottle neck due to synchronize block on each read
> -------------------------------------------------------------
>
> Key: CXF-6825
> URL: https://issues.apache.org/jira/browse/CXF-6825
> Project: CXF
> Issue Type: Bug
> Components: Bus, JAX-RS
> Affects Versions: 3.1.0, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.1.5, 3.2.0, 3.1.6
> Environment: All environments
> Reporter: Yotam Madem
> Fix For: 3.2.0, 3.1.6
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> In our (IBM MobileFirst foundation) performance tests it is possible to see
> that many threads are stuck at:
> "LargeThreadPool-thread-1505" daemon prio=10 tid=0x00007f10f020b800
> nid=0x31fc waiting for monitor entry [0x00007f12bfffd000]
> java.lang.Thread.State: BLOCKED (on object monitor)
> at org.apache.cxf.BusFactory.getThreadBusHolder(BusFactory.java:120)
> - waiting to lock <0x00000000c6b99020> (a java.util.WeakHashMap)
> at
> org.apache.cxf.BusFactory.getAndSetThreadDefaultBus(BusFactory.java:202)
>
> (We use version 3.1.0)
> I did a test fix locally and it seems to resolve our problem so I submitted 2
> pull requests:
> for 3.1.6: https://github.com/apache/cxf/pull/119
> for 3.2.0: https://github.com/apache/cxf/pull/120
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