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https://issues.apache.org/jira/browse/POOL-281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Thomas updated POOL-281:
-----------------------------
Fix Version/s: (was: 2.2)
Labels: (was: patch)
Summary: Infinite loop (was: Dead Loop)
Clean up report attributes.
> Infinite loop
> -------------
>
> Key: POOL-281
> URL: https://issues.apache.org/jira/browse/POOL-281
> Project: Commons Pool
> Issue Type: Bug
> Affects Versions: 2.2
> Environment: Linux,JDK1.6.23,Tomcat6
> Reporter: lqm
>
> I use the pool2 as a tcp connection pool,when I start tomcat,one thread occur
> an infinite loop In the advance() method,but it sometimes happens, not
> always,the java statck information is as follows:
> Thread 2194: (state = IN_JAVA)
> - org.apache.commons.pool2.impl.LinkedBlockingDeque$AbstractItr.advance()
> @bci=42, line=1163 (Compiled frame; information may be imprecise)
> - org.apache.commons.pool2.impl.LinkedBlockingDeque$AbstractItr.next()
> @bci=29, line=1184 (Interpreted frame)
> - org.apache.commons.pool2.impl.GenericKeyedObjectPool.clearOldest()
> @bci=85, line=741 (Interpreted frame)
> -
> org.apache.commons.pool2.impl.GenericKeyedObjectPool.create(java.lang.Object)
> @bci=56, line=991 (Interpreted frame)
> -
> org.apache.commons.pool2.impl.GenericKeyedObjectPool.borrowObject(java.lang.Object,
> long) @bci=59, line=356 (Interpreted frame)
> -
> org.apache.commons.pool2.impl.GenericKeyedObjectPool.borrowObject(java.lang.Object)
> @bci=6, line=277 (Interpreted frame)
> Thread 2195: (state = BLOCKED)
> - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
> - java.util.concurrent.locks.LockSupport.park(java.lang.Object) @bci=14,
> line=158 (Interpreted frame)
> -
> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt()
> @bci=1, line=811 (Interpreted frame)
> -
> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(java.util.concurrent.locks.AbstractQueuedSynchronizer$Node,
> int) @bci=48, line=842 (Interpreted frame)
> -
> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(long)
> @bci=112, line=2033 (Interpreted frame)
> - org.apache.commons.pool2.impl.LinkedBlockingDeque.pollFirst(long,
> java.util.concurrent.TimeUnit) @bci=50, line=569 (Interpreted frame)
> -
> org.apache.commons.pool2.impl.GenericKeyedObjectPool.borrowObject(java.lang.Object,
> long) @bci=105, line=363 (Interpreted frame)
> -
> org.apache.commons.pool2.impl.GenericKeyedObjectPool.borrowObject(java.lang.Object)
> @bci=6, line=277 (Interpreted frame)
>
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