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From "Marshall Schor (Jira)" <...@uima.apache.org>
Subject [jira] [Commented] (UIMA-6129) The thread may deadlock if other thread interrupted which use jcas
Date Thu, 17 Oct 2019 20:01:00 GMT

    [ https://issues.apache.org/jira/browse/UIMA-6129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16954064#comment-16954064
] 

Marshall Schor commented on UIMA-6129:
--------------------------------------

Can we close this issue at this point?

> The thread may deadlock if other thread interrupted which use jcas 
> -------------------------------------------------------------------
>
>                 Key: UIMA-6129
>                 URL: https://issues.apache.org/jira/browse/UIMA-6129
>             Project: UIMA
>          Issue Type: Bug
>          Components: UIMA
>    Affects Versions: 2.10.4SDK
>            Reporter: li Gongrong
>            Priority: Major
>
> I use FutureTask to kill the thread spend a lot of time,but it will cause deadlock.
> {code:java}
> at sun.misc.Unsafe.park(Native Method)at sun.misc.Unsafe.park(Native Method) - parking
to wait for  <0x000000070435e808> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at org.apache.uima.jcas.impl.JCasHashMapSubMap.getReserve(JCasHashMapSubMap.java:303) at org.apache.uima.jcas.impl.JCasHashMap.getReserve(JCasHashMap.java:318)
at org.apache.uima.jcas.impl.JCasImpl.getJfsFromCaddr(JCasImpl.java:1154) at org.apache.uima.jcas.impl.JCasImpl$JCasFsGenerator.createFS(JCasImpl.java:912)
at org.apache.uima.jcas.impl.JCasImpl$JCasFsGenerator.createFS(JCasImpl.java:873) at org.apache.uima.cas.impl.CASImpl.ll_getFSForRef(CASImpl.java:3751)
at org.apache.uima.cas.impl.CASImpl.createFS(CASImpl.java:2231) at org.apache.uima.cas.impl.FSIteratorWrapper.get(FSIteratorWrapper.java:63)
at org.apache.uima.cas.impl.FSIteratorAggregate.get(FSIteratorAggregate.java:76) at org.apache.uima.cas.impl.FSIteratorImplBase.next(FSIteratorImplBase.java:66)
at org.apache.uima.cas.impl.FSIteratorImplBase.next(FSIteratorImplBase.java:32)
> {code}
> why ?



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