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 Post subject:
PostPosted: Tue Feb 05, 2008 4:13 am 
Newbie

Joined: Wed Jun 30, 2004 2:02 am
Posts: 13
swaldman wrote:
hi,

please try c3p0-0.9.1-pre11. i think most of these APPARENT DEADLOCK issues are now resolved, though of course you can prove me wrong...

if you have trouble reaching c3p0's website on mchange.com (we're having some network issues), please go to sourceforge.net and search for c3p0. sourceforge hosts the actual releases.

good luck!
steve


We're using c3p0-0.9.1.2, and this problem happens consistently during heavy loads (especially if the machine itself is loaded to the point where it's swapping).

As far as I can tell, after reading the c3p0 code for a while, this is a fundamental problem with the way the DeadlockDetector code is written. The detection algorithm results in false positives under heavy system load.

The detection algotihm is simply that if no background task completes and no new tasks are posted between consecutive runs of the detector, then a deadlock is assumed and the detector interrupts all the pool threads and starts new ones.

Since there is no problem other than a really loaded machine, these thread interruptions cause resource leakages, since no cleanup is done by the background tasks when they are interrupted, and the process is highly likely to be repeated again in the future.

Am I off in the weeds here, or is this what's going on? We're pretty close to just hacking away the deadlock detector code -- the cure is much worse than the disease, it seems.

There's a second problem we've run into that's somewhat self-inflicted, but points out another vulnerability in the code. We configure acquireRetryAttempts to zero (meaning retry indefinitely). The problem is that this will cause resource starvation under certain conditions. For example, if all pool threads are blocked on acquiring connections, then no threads are available to refurbish released connections, which causes things to grind to a halt.

This is easy to configure around, but seems like something that should at least be documented as a vulnerability in the code.


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 Post subject: encountered the same problem
PostPosted: Wed Apr 02, 2008 3:49 pm 
Newbie

Joined: Wed Apr 02, 2008 3:42 pm
Posts: 2
same problem occured for me on production environment:
hibernate-3.2.5.ga & c3p0-0.9.1.2

stacktrace follows:

2008-04-01 09:47:27-140 [Timer-2] [] [WARN] [] | com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@e40ea7 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2008-04-01 09:47:27-154 [Timer-2] [] [WARN] [] | com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@e40ea7 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 3
Active Tasks:
com.mchange.v2.c3p0.stmt.GooGooStatementCache$1StatementCloseTask@1fddab7 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2)
com.mchange.v2.c3p0.stmt.GooGooStatementCache$1StatementCloseTask@1224533 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)
com.mchange.v2.c3p0.stmt.GooGooStatementCache$1StatementCloseTask@ed317f (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1)
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@4c9080
com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@a3002d
com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@160990b
com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@dfaa16
com.mchange.v2.c3p0.stmt.GooGooStatementCache$1StmtAcquireTask@17b9fc
com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@1b380ad
com.mchange.v2.resourcepool.BasicResourcePool$1RefurbishCheckinResourceTask@1c4f966
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@d1a5c8
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1dafe4d
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@6d839e
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1dc3aea
com.mchange.v2.c3p0.stmt.GooGooStatementCache$1StmtAcquireTask@19ffd81
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@bc46f0
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@d5726f
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@14c1155
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1061975


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 Post subject: Re:
PostPosted: Wed May 13, 2009 9:55 pm 
Newbie

Joined: Wed May 13, 2009 9:11 pm
Posts: 1
anders wrote:
swaldman wrote:
hi,

please try c3p0-0.9.1-pre11. i think most of these APPARENT DEADLOCK issues are now resolved, though of course you can prove me wrong...

if you have trouble reaching c3p0's website on mchange.com (we're having some network issues), please go to sourceforge.net and search for c3p0. sourceforge hosts the actual releases.

good luck!
steve


We're using c3p0-0.9.1.2, and this problem happens consistently during heavy loads (especially if the machine itself is loaded to the point where it's swapping).

As far as I can tell, after reading the c3p0 code for a while, this is a fundamental problem with the way the DeadlockDetector code is written. The detection algorithm results in false positives under heavy system load.

The detection algotihm is simply that if no background task completes and no new tasks are posted between consecutive runs of the detector, then a deadlock is assumed and the detector interrupts all the pool threads and starts new ones.

Since there is no problem other than a really loaded machine, these thread interruptions cause resource leakages, since no cleanup is done by the background tasks when they are interrupted, and the process is highly likely to be repeated again in the future.

Am I off in the weeds here, or is this what's going on? We're pretty close to just hacking away the deadlock detector code -- the cure is much worse than the disease, it seems.

There's a second problem we've run into that's somewhat self-inflicted, but points out another vulnerability in the code. We configure acquireRetryAttempts to zero (meaning retry indefinitely). The problem is that this will cause resource starvation under certain conditions. For example, if all pool threads are blocked on acquiring connections, then no threads are available to refurbish released connections, which causes things to grind to a halt.

This is easy to configure around, but seems like something that should at least be documented as a vulnerability in the code.


I would want to know if exists any changes between the two edition.


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 Post subject: Re:
PostPosted: Thu Sep 03, 2009 3:19 pm 
Beginner
Beginner

Joined: Wed Sep 06, 2006 12:08 pm
Posts: 48
Location: Warsaw - Poland - Europe - Milky Way
Hi

I am one of those who can see those c3p0 warnings (APPARENT DEADLOCK) in logfiles of my systems using Hibernate + c3p0.

anders wrote:
Am I off in the weeds here, or is this what's going on? We're pretty close to just hacking away the deadlock detector code -- the cure is much worse than the disease, it seems.


Wait a second...
I had a look at c3p0 source code, and as far as I understood, you can control (broken?) DeadlockDetector using maxAdministrativeTaskTime c3p0 property:
http://www.mchange.com/projects/c3p0/in ... veTaskTime

In particular notice following pieces of documentation:
Quote:
Zero (the default) means tasks are never interrupted, which is the best and safest policy under most circumstances.


So if your maxAdministrativeTaskTime is zero nothing is interrupted (...and then there is no risk of resource leaks). At least this is my understanding of this mechanism ;]

Notice, please, that the message from logfile:
Quote:
APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!


... tels us that c3p0 will create a bunch of emergency threads but there is no information about that c3p0 is going to interrupt any (working/pooled) threads.

Regards,
Adam Woźniak
Poland


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 Post subject: Re: c3p0 apparent deadlock / creating emergency threads
PostPosted: Tue Jul 06, 2010 2:01 pm 
Newbie

Joined: Mon Jul 05, 2010 1:17 pm
Posts: 4
are there any updates on that issue? i have the same problem and can not find a solution.


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 Post subject: Re: c3p0 apparent deadlock / creating emergency threads
PostPosted: Wed Aug 11, 2010 2:59 pm 
Newbie

Joined: Wed Aug 11, 2010 2:49 pm
Posts: 1
Any updates on this? I am getting the same threads deadlock message. Below is the C3P0 config settings from the log:
Quote:
2010-06-16 16:38:25,113 INFO Thread-2 com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ acquireIncrement -> 1, acquireRetryAttempts -> 10, acquireRetryDelay -> 1000, autoCommitOnClose -> false, automaticTestTable -> null, breakAfterAcquireFailure -> false, checkoutTimeout -> 0, connectionCustomizerClassName -> null, connectionTesterClassName -> com.mchange.v2.c3p0.impl.DefaultConnectionTester, dataSourceName -> 2sct5n89ig394aaxd0j6|309ba3bc, debugUnreturnedConnectionStackTraces -> false, description -> null, driverClass -> net.sourceforge.jtds.jdbc.Driver, factoryClassLocation -> null, forceIgnoreUnresolvedTransactions -> false, identityToken -> 2sct5n89ig394aaxd0j6|309ba3bc, idleConnectionTestPeriod -> 3600, initialPoolSize -> 1, jdbcUrl -> jdbc:jtds:sqlserver://[server];sendStringParametersAsUnicode=false, maxAdministrativeTaskTime -> 0, maxConnectionAge -> 14400, maxIdleTime -> 1800, maxIdleTimeExcessConnections -> 0, maxPoolSize -> 5, maxStatements -> 0, maxStatementsPerConnection -> 500, minPoolSize -> 1, numHelperThreads -> 3, numThreadsAwaitingCheckoutDefaultUser -> 0, preferredTestQuery -> SELECT 'CDC2B Common conn. pool', properties -> {user=******, password=******}, propertyCycle -> 0, testConnectionOnCheckin -> false, testConnectionOnCheckout -> false, unreturnedConnectionTimeout -> 0, usesTraditionalReflectiveProxies -> false ]
2010-06-16 16:38:25,534 INFO Thread-2 org.hibernate.cfg.SettingsFactory - RDBMS: Microsoft SQL Server, version: 09.00.4053
2010-06-16 16:38:25,534 INFO Thread-2 org.hibernate.cfg.SettingsFactory - JDBC driver: jTDS Type 4 JDBC Driver for MS SQL Server and Sybase, version: 1.2.2

and the actual errors look like this:
Quote:
2010-08-11 03:25:25,478 WARN Timer-361 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@39b1d9e9 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:25:25,478 WARN Timer-363 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3bbc7e43 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:25:25,478 WARN Timer-364 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@38298c2d -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:25:25,478 WARN Timer-362 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3b2d65b8 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:25:25,494 WARN Timer-362 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3b2d65b8 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c48398b
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:25:25,494 WARN Timer-361 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@39b1d9e9 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c001931
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:25:25,494 WARN Timer-363 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3bbc7e43 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3b88c516
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:25:25,494 WARN Timer-364 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@38298c2d -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bb216ec
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:26:05,479 WARN Timer-375 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3d4409be -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:05,479 WARN Timer-375 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3d4409be -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c2d20bb
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:26:05,479 WARN Timer-376 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@373fb472 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:05,479 WARN Timer-376 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@373fb472 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3ba07348
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:26:05,479 WARN Timer-195 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3745514b -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:05,479 WARN Timer-373 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@37b901dc -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:05,479 WARN Timer-374 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3d3d6cd7 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:05,526 WARN Timer-374 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3d3d6cd7 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c1b30ca
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:26:15,463 WARN Timer-379 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3419efb8 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:15,463 WARN Timer-379 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3419efb8 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c39e8c5
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:26:15,463 WARN Timer-380 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3416e7ed -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:15,463 WARN Timer-380 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3416e7ed -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c39ec44
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:26:15,479 WARN Timer-378 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3417ef1e -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:15,479 WARN Timer-378 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3417ef1e -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c368908
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:26:25,463 WARN Timer-382 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@342fd7f2 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:25,463 WARN Timer-382 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@342fd7f2 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c321fd1
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:26:25,479 WARN Timer-381 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3307f1b5 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:26:25,479 WARN Timer-381 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3307f1b5 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c36a908
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:28:45,465 WARN Timer-22 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@301da9dd -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 03:28:45,465 WARN Timer-22 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@301da9dd -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$1DestroyResourceTask@3c18af9f
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@3c18afb0
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:29:04,528 WARN Timer-195 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3745514b -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$1DestroyResourceTask@3c41d43f
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@3c41d450
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:29:04,528 WARN Timer-373 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@37b901dc -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3c186990
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 03:29:04,715 INFO com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2 com.mchange.v2.c3p0.impl.NewPooledConnection - [c3p0] Exceptions occurred while trying to close a PooledConnection's resources normally.
2010-08-11 03:29:04,715 INFO com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2 com.mchange.v2.c3p0.impl.NewPooledConnection - [c3p0] NewPooledConnection close Exception.
java.sql.SQLException: I/O Error: Stream 1 attempting to read when no request has been sent
at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2307)
at net.sourceforge.jtds.jdbc.TdsCore.clearResponseQueue(TdsCore.java:728)
at net.sourceforge.jtds.jdbc.ConnectionJDBC2.releaseTds(ConnectionJDBC2.java:1903)
at net.sourceforge.jtds.jdbc.JtdsStatement.close(JtdsStatement.java:853)
at com.mchange.v2.c3p0.impl.NewPooledConnection.cleanupUncachedStatements(NewPooledConnection.java:651)
at com.mchange.v2.c3p0.impl.NewPooledConnection.close(NewPooledConnection.java:539)
at com.mchange.v2.c3p0.impl.NewPooledConnection.close(NewPooledConnection.java:234)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.destroyResource(C3P0PooledConnectionPool.java:470)
at com.mchange.v2.resourcepool.BasicResourcePool$1DestroyResourceTask.run(BasicResourcePool.java:964)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
Caused by: java.io.IOException: Stream 1 attempting to read when no request has been sent
at net.sourceforge.jtds.jdbc.SharedSocket.getNetPacket(SharedSocket.java:707)
at net.sourceforge.jtds.jdbc.ResponseStream.getPacket(ResponseStream.java:466)
at net.sourceforge.jtds.jdbc.ResponseStream.read(ResponseStream.java:103)
at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2202)
... 9 more
2010-08-11 03:29:05,153 WARN com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2 com.mchange.v2.resourcepool.BasicResourcePool - Failed to destroy resource: com.mchange.v2.c3p0.impl.NewPooledConnection@3b785650
java.sql.SQLException: Some resources failed to close properly while closing com.mchange.v2.c3p0.impl.NewPooledConnection@3b785650
at com.mchange.v2.c3p0.impl.NewPooledConnection.close(NewPooledConnection.java:571)
at com.mchange.v2.c3p0.impl.NewPooledConnection.close(NewPooledConnection.java:234)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.destroyResource(C3P0PooledConnectionPool.java:470)
at com.mchange.v2.resourcepool.BasicResourcePool$1DestroyResourceTask.run(BasicResourcePool.java:964)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
2010-08-11 03:29:05,169 WARN com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0 com.mchange.v1.db.sql.ResultSetUtils - ResultSet close FAILED.
java.sql.SQLException: Invalid state, the Statement object is closed.
at net.sourceforge.jtds.jdbc.JtdsStatement.checkOpen(JtdsStatement.java:220)
at net.sourceforge.jtds.jdbc.JtdsStatement.getConnection(JtdsStatement.java:1204)
at net.sourceforge.jtds.jdbc.JtdsResultSet.getConnection(JtdsResultSet.java:421)
at net.sourceforge.jtds.jdbc.JtdsResultSet.close(JtdsResultSet.java:482)
at com.mchange.v2.c3p0.impl.NewProxyResultSet.close(NewProxyResultSet.java:2999)
at com.mchange.v1.db.sql.ResultSetUtils.attemptClose(ResultSetUtils.java:41)
at com.mchange.v2.c3p0.impl.DefaultConnectionTester.activeCheckConnection(DefaultConnectionTester.java:111)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.testPooledConnection(C3P0PooledConnectionPool.java:374)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.refurbishIdleResource(C3P0PooledConnectionPool.java:310)
at com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask.run(BasicResourcePool.java:1999)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
2010-08-11 07:21:52,004 WARN Timer-321 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3531749c -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:21:52,004 WARN Timer-321 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3531749c -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bc628c5
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:21:52,019 WARN Timer-323 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3638f3ed -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:21:52,019 WARN Timer-323 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3638f3ed -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3b95355f
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:21:52,019 WARN Timer-324 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@364a6867 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:21:52,019 WARN Timer-324 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@364a6867 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bbe43c4
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:01,988 WARN Timer-328 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@379a1bf4 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:01,988 WARN Timer-328 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@379a1bf4 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bcc50ac
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:02,004 WARN Timer-327 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@37205112 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:02,004 WARN Timer-327 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@37205112 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bb44130
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:02,004 WARN Timer-325 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@37448eb7 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:02,019 WARN Timer-325 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@37448eb7 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bbd87b4
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:42,004 WARN Timer-339 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@35984a74 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:42,004 WARN Timer-339 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@35984a74 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bb8b3ba
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:42,004 WARN Timer-338 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@33f1f6b8 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:42,004 WARN Timer-338 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@33f1f6b8 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bc7fcae
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:42,004 WARN Timer-340 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@37d351cb -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:42,004 WARN Timer-340 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@37d351cb -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bcd01cb
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:52,004 WARN Timer-343 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@39b33fcf -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:52,004 WARN Timer-343 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@39b33fcf -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bc86b5e
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:52,020 WARN Timer-344 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@39c61b72 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:52,020 WARN Timer-344 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@39c61b72 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3b97525e
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:52,020 WARN Timer-342 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@33f79711 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:52,020 WARN Timer-342 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@33f79711 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bda4cc0
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:22:52,051 WARN Timer-341 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3a3cf667 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:22:52,051 WARN Timer-341 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3a3cf667 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bbb3da4
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Object.wait(Native Method)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:24:52,022 WARN Timer-355 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@33aabab9 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:24:52,022 WARN Timer-355 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@33aabab9 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bdae03f
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:24:52,022 WARN Timer-356 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@33a65bd7 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:24:52,022 WARN Timer-356 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@33a65bd7 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3b95a570
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:25:22,006 WARN Timer-362 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3b2d65b8 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:25:22,006 WARN Timer-362 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3b2d65b8 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bd4be4f
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:25:22,022 WARN Timer-363 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3bbc7e43 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:25:22,022 WARN Timer-363 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@3bbc7e43 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bccbccd
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:25:22,038 WARN Timer-361 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@39b1d9e9 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2010-08-11 07:25:22,038 WARN Timer-361 com.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@39b1d9e9 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 0
Active Tasks:
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@3bc619ed
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:534)


2010-08-11 07:25:26,319 WARN Timer-328 com.mchange.v2.async.ThreadPoolAsynchronousRunner - Task null (in deadlocked PoolThread) failed to complete in maximum time 60000ms. Trying interrupt().
2010-08-11 07:25:26,319 WARN Timer-328 com.mchange.v2.async.ThreadPoolAsynchronousRunner - Task null (in deadlocked PoolThread) failed to complete in maximum time 60000ms. Trying interrupt().
2010-08-11 07:25:26,319 WARN Timer-328 com.mchange.v2.async.ThreadPoolAsynchronousRunner - Task null (in deadlocked PoolThread) failed to complete in maximum time 60000ms. Trying interrupt().


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 Post subject: Re: c3p0 apparent deadlock / creating emergency threads
PostPosted: Tue Sep 06, 2011 5:03 pm 
Newbie

Joined: Tue Sep 06, 2011 5:02 pm
Posts: 1
Also having this issue. Any updates?


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 Post subject: Re: c3p0 apparent deadlock / creating emergency threads
PostPosted: Thu May 23, 2013 9:09 am 
Newbie

Joined: Thu May 23, 2013 8:50 am
Posts: 1
I am also getting similar error .
This is my hibernate c3p0 dependency
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>3.6.5.Final</version>
</dependency>
these are my c3p0 properties
c3p0.acquireIncrement=10
c3p0.idleTestPeriod=300
c3p0.minSize=10
c3p0.maxSize=100
c3p0.maxStatements=0
c3p0.timeout=10800

WARNING: com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1b763 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
May 23, 2013 5:50:21 PM com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector run
WARNING: com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@1b763 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 3
Active Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@144cd1b (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1f5bbc1 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1)
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1f9872a (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2)
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@118f31b
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@100a263
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@a5424f
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1a4624e
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@131f6e7
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@148f1c0
com.mchange.v2.resourcepool.BasicResourcePool$AsyncTestIdleResourceTask@1f777fc
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:562)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:562)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:562)

This is the stack trace.
Could any body help Thanks in advance


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