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Let's play "Spot the Deadlock" ;-)
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Let's play "Spot the Deadlock" ;-)

  • Subject: Let's play "Spot the Deadlock" ;-)
  • From: Kieran Kelleher <email@hidden>
  • Date: Wed, 7 Oct 2009 16:06:50 -0400
Here is an interesting deadlock I got today. I know some of you like to comment on deadlocks ...... and I certainly appreciate it! BTW, I have concurrent off and Session deadlock detection on on that instance, so I am guessing this was an EOF lock. This app uses Wonder, ERXEC, safe autolocking, and Wonder EOF stack synchronization within instances, however there is only one common EOF stack for normal requests and EOF stacks are created occasionally for intensive background tasks.

Any comments on possible root cause and or troubleshooting tips?

I had a gazillion of stacks that were the same as the two under REMOVED STACKS below, so I have removed all those for readability:

REMOVED STACKS (I removed these ones that appearred multiple time from the jstack output for readability):
Thread t@56835: (state = BLOCKED)
 - java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=0, line=382 (Compiled frame; information may be imprecise)
 - java.net.ServerSocket.implAccept(java.net.Socket) @bci=50, line=450 (Interpreted frame)
 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)
 - com.webobjects.appserver._private.WOWorkerThread.run() @bci=26, line=238 (Compiled frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)

Thread t@72451: (state = BLOCKED)
 - com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(com.webobjects.appserver.WORequest) @bci=21, line=432 (Interpreted frame)
 - com.webobjects.appserver.WOApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=41, line=1306 (Compiled frame)
 - er.extensions.appserver.ERXApplication.dispatchRequestImmediately(com.webobjects.appserver.WORequest) @bci=74, line=1887 (Compiled frame)
 - er.extensions.appserver.ERXApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=13, line=1852 (Compiled frame)
 - com.webobjects.appserver._private.WOWorkerThread.runOnce() @bci=729, line=173 (Compiled frame)
 - com.webobjects.appserver._private.WOWorkerThread.run() @bci=129, line=254 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)

Thread t@75779: (state = BLOCKED)
 - com.webobjects.appserver._private.WOActionRequestHandler.handleRequest(com.webobjects.appserver.WORequest) @bci=54, line=142 (Interpreted frame)
 - er.extensions.appserver.ERXDirectActionRequestHandler.handleRequest(com.webobjects.appserver.WORequest) @bci=222, line=124 (Interpreted frame)
 - com.webobjects.appserver.WOApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=41, line=1306 (Compiled frame)
 - er.extensions.appserver.ERXApplication.dispatchRequestImmediately(com.webobjects.appserver.WORequest) @bci=74, line=1887 (Compiled frame)
 - er.extensions.appserver.ERXApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=13, line=1852 (Compiled frame)
 - com.webobjects.appserver._private.WOWorkerThread.runOnce() @bci=729, line=173 (Compiled frame)
 - com.webobjects.appserver._private.WOWorkerThread.run() @bci=129, line=254 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


REMAINING STACKS (this is everything else):

Thread t@72195: (state = IN_NATIVE)
 - com.webobjects.appserver.WOApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=9, line=1298 (Compiled frame; information may be imprecise)
 - er.extensions.appserver.ERXApplication.dispatchRequestImmediately(com.webobjects.appserver.WORequest) @bci=74, line=1887 (Compiled frame)
 - er.extensions.appserver.ERXApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=13, line=1852 (Compiled frame)
 - com.webobjects.appserver._private.WOWorkerThread.runOnce() @bci=729, line=173 (Compiled frame)
 - com.webobjects.appserver._private.WOWorkerThread.run() @bci=129, line=254 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@76035: (state = IN_NATIVE)
 - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 (Compiled frame; information may be imprecise)
 - java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=384 (Compiled frame)
 - java.net.ServerSocket.implAccept(java.net.Socket) @bci=50, line=450 (Interpreted frame)
 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)
 - com.webobjects.appserver._private.WOWorkerThread.run() @bci=26, line=238 (Compiled frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@76291: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await() @bci=41, line=1841 (Interpreted frame)
 - java.util.concurrent.LinkedBlockingQueue.take() @bci=29, line=359 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=47, line=470 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=18, line=674 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@76547: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await() @bci=41, line=1841 (Interpreted frame)
 - java.util.concurrent.LinkedBlockingQueue.take() @bci=29, line=359 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=47, line=470 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=18, line=674 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@76803: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await() @bci=41, line=1841 (Interpreted frame)
 - java.util.concurrent.LinkedBlockingQueue.take() @bci=29, line=359 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=47, line=470 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=18, line=674 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@77059: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=120 (Compiled frame)
 - java.lang.ref.ReferenceQueue.remove() @bci=2, line=136 (Compiled frame)
 - org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$ReferenceQueueThread.run() @bci=10, line=1122 (Interpreted frame)


Thread t@77315: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
 - au.com.forward.threads.ThreadReturn$1.run() @bci=3, line=391 (Compiled frame)


Thread t@77571: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - org.apache.commons.httpclient.util.IdleConnectionTimeoutThread.run() @bci=49, line=108 (Interpreted frame)


Thread t@77827: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await() @bci=41, line=1841 (Interpreted frame)
 - java.util.concurrent.LinkedBlockingQueue.take() @bci=29, line=359 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=47, line=470 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=18, line=674 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@78339: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await() @bci=41, line=1841 (Interpreted frame)
 - java.util.concurrent.LinkedBlockingQueue.take() @bci=29, line=359 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=47, line=470 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=18, line=674 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@78595: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await() @bci=41, line=1841 (Interpreted frame)
 - java.util.concurrent.DelayQueue.take() @bci=28, line=131 (Interpreted frame)
 - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take() @bci=4, line=504 (Interpreted frame)
 - java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take() @bci=1, line=497 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=47, line=470 (Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=18, line=674 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@78851: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
 - java.util.TimerThread.mainLoop() @bci=28, line=483 (Interpreted frame)
 - java.util.TimerThread.run() @bci=1, line=462 (Interpreted frame)


Thread t@79107: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - er.javamail.ERMailSender.run() @bci=26, line=276 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)



Thread t@81411: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be imprecise)
 - java.lang.Object.wait() @bci=2, line=474 (Compiled frame)
 - com.webobjects.eoaccess.EODatabaseContext.lock() @bci=56, line=1973 (Compiled frame)
 - com.webobjects.eocontrol.EOObjectStoreCoordinator.addCooperatingObjectStore(com.webobjects.eocontrol.EOCooperatingObjectStore) @bci=5, line=130 (Compiled frame)
 - com.webobjects.eoaccess.EODatabaseChannel.setCurrentEditingContext(com.webobjects.eocontrol.EOEditingContext) @bci=34, line=166 (Compiled frame)
 - com.webobjects.eoaccess.EODatabaseChannel._selectWithFetchSpecificationEditingContext(com.webobjects.eocontrol.EOFetchSpecification, com.webobjects.eocontrol.EOEditingContext) @bci=158, line=788 (Compiled frame)
 - com.webobjects.eoaccess.EODatabaseChannel.selectObjectsWithFetchSpecification(com.webobjects.eocontrol.EOFetchSpecification, com.webobjects.eocontrol.EOEditingContext) @bci=64, line=215 (Compiled frame)
 - com.webobjects.eoaccess.EODatabaseContext._objectsWithFetchSpecificationEditingContext(com.webobjects.eocontrol.EOFetchSpecification, com.webobjects.eocontrol.EOEditingContext) @bci=219, line=3205 (Compiled frame)
 - com.webobjects.eoaccess.EODatabaseContext.objectsWithFetchSpecification(com.webobjects.eocontrol.EOFetchSpecification, com.webobjects.eocontrol.EOEditingContext) @bci=34, line=3346 (Compiled frame)
 - com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsWithFetchSpecification(com.webobjects.eocontrol.EOFetchSpecification, com.webobjects.eocontrol.EOEditingContext) @bci=97, line=539 (Compiled frame)
 - com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(com.webobjects.eocontrol.EOFetchSpecification, com.webobjects.eocontrol.EOEditingContext) @bci=79, line=4114 (Compiled frame)
 - er.extensions.eof.ERXEC.objectsWithFetchSpecification(com.webobjects.eocontrol.EOFetchSpecification, com.webobjects.eocontrol.EOEditingContext) @bci=68, line=1189 (Compiled frame)
 - com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(com.webobjects.eocontrol.EOFetchSpecification) @bci=3, line=4500 (Compiled frame)
 - wk.cheetah.eof.ProgramBehaviour$Utilities.hasAllTemplatesApprovedAndValid(wk.cheetah.eof.CTProgram) @bci=5, line=130 (Compiled frame)
 - wk.cheetah.eof.ProgramBehaviour$Utilities.doesRequireAttention(wk.cheetah.eof.CTProgram) @bci=15, line=120 (Compiled frame)
 - wk.cheetah.eof.JobsiteRadiusProgramBehaviour.doesRequireAttention() @bci=4, line=148 (Compiled frame)
 - wk.cheetah.eof.CTProgram.doesRequireAttention() @bci=4, line=425 (Compiled frame)
 - sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=6, line=25 (Compiled frame)
 - java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=111, line=585 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(java.lang.Object, java.lang.reflect.Method) @bci=3, line=684 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(java.lang.Object) @bci=9, line=1160 (Compiled frame)
 - com.webobjects.eocontrol.EOCustomObject.valueForKey(java.lang.String) @bci=14, line=1559 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(java.lang.Object, java.lang.String) @bci=26, line=498 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(java.lang.Object, java.lang.String) @bci=19, line=212 (Compiled frame)
 - com.webobjects.eocontrol.EOCustomObject.valueForKeyPath(java.lang.String) @bci=2, line=1675 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$Utility.valueForKeyPath(java.lang.Object, java.lang.String) @bci=26, line=149 (Compiled frame)
 - com.webobjects.eocontrol.EOKeyValueQualifier.evaluateWithObject(java.lang.Object) @bci=5, line=131 (Compiled frame)
 - com.webobjects.eocontrol.EOQualifier.filteredArrayWithQualifier(com.webobjects.foundation.NSArray, com.webobjects.eocontrol.EOQualifier) @bci=55, line=635 (Compiled frame)
 - wk.cheetah.eof.CTLocation.requiresAttentionPrograms() @bci=22, line=376 (Compiled frame)
 - sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=6, line=25 (Compiled frame)
 - java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=111, line=585 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(java.lang.Object, java.lang.reflect.Method) @bci=3, line=684 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(java.lang.Object) @bci=9, line=1160 (Compiled frame)
 - com.webobjects.eocontrol.EOCustomObject.valueForKey(java.lang.String) @bci=14, line=1559 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(java.lang.Object, java.lang.String) @bci=26, line=498 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(java.lang.Object, java.lang.String) @bci=32, line=216 (Compiled frame)
 - com.webobjects.eocontrol.EOCustomObject.valueForKeyPath(java.lang.String) @bci=2, line=1675 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$Utility.valueForKeyPath(java.lang.Object, java.lang.String) @bci=26, line=149 (Compiled frame)
 - com.webobjects.foundation.NSArray$_Operator._operationValue(java.lang.Object, java.lang.String) @bci=17, line=79 (Compiled frame)
 - com.webobjects.foundation.NSArray$_SumNumberOperator.compute(com.webobjects.foundation.NSArray, java.lang.String) @bci=3, line=46 (Compiled frame)
 - com.webobjects.foundation.NSArray._valueForKeyPathWithOperator(java.lang.String) @bci=71, line=744 (Compiled frame)
 - com.webobjects.foundation.NSArray.valueForKeyPath(java.lang.String) @bci=16, line=778 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$Utility.valueForKeyPath(java.lang.Object, java.lang.String) @bci=26, line=149 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(java.lang.Object, java.lang.String) @bci=52, line=217 (Compiled frame)
 - com.webobjects.eocontrol.EOCustomObject.valueForKeyPath(java.lang.String) @bci=2, line=1675 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$Utility.valueForKeyPath(java.lang.Object, java.lang.String) @bci=26, line=149 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(java.lang.Object, java.lang.String) @bci=52, line=217 (Compiled frame)
 - com.webobjects.appserver.WOComponent.valueForKeyPath(java.lang.String) @bci=2, line=1600 (Compiled frame)
 - com.webobjects.appserver.WOComponent.valueForBinding(java.lang.String) @bci=22, line=735 (Compiled frame)
 - sun.reflect.GeneratedMethodAccessor261.invoke(java.lang.Object, java.lang.Object[]) @bci=36 (Compiled frame)
 - sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=6, line=25 (Compiled frame)
 - java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=111, line=585 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(java.lang.Object, java.lang.reflect.Method) @bci=3, line=684 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(java.lang.Object) @bci=9, line=1160 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(java.lang.Object, java.lang.String) @bci=34, line=1268 (Compiled frame)
 - com.webobjects.appserver.WOComponent.valueForKey(java.lang.String) @bci=2, line=1539 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(java.lang.Object, java.lang.String) @bci=26, line=498 (Compiled frame)
 - com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(java.lang.Object, java.lang.String) @bci=19, line=212 (Compiled frame)
 - com.webobjects.appserver.WOComponent.valueForKeyPath(java.lang.String) @bci=2, line=1600 (Compiled frame)
 - com.webobjects.appserver._private.WOHTMLDynamicElement._appendAttributesFromAssociationsToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext, com.webobjects.foundation.NSDictionary) @bci=60, line=317 (Compiled frame)
 - com.webobjects.appserver._private.WOGenericElement.appendAttributesToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=161, line=158 (Compiled frame)
 - com.webobjects.appserver._private.WOGenericElement.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=60, line=181 (Compiled frame)
 - com.webobjects.appserver._private.WOGenericContainer.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=3, line=29 (Compiled frame)
 - com.webobjects.appserver.WOComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=56, line=992 (Compiled frame)
 - er.extensions.components.ERXComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=26, line=107 (Compiled frame)
 - wk.webobjects.appserver.WKAbstractComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=30, line=457 (Compiled frame)
 - com.webobjects.appserver._private.WOComponentReference.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=11, line=111 (Compiled frame)
 - com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=46, line=121 (Compiled frame)
 - er.extensions.components._private.ERXWORepetition.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=90, line=508 (Compiled frame)
 - com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=46, line=121 (Compiled frame)
 - com.webobjects.appserver._private.WODynamicGroup.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=3, line=130 (Compiled frame)
 - com.webobjects.appserver._private.WOComponentContent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=36, line=43 (Compiled frame)
 - com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=46, line=121 (Compiled frame)
 - com.webobjects.appserver._private.WOGenericContainer.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=15, line=32 (Compiled frame)
 - com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=46, line=121 (Compiled frame)
 - com.webobjects.appserver._private.WODynamicGroup.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=3, line=130 (Compiled frame)
 - com.webobjects.appserver.WOComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=56, line=992 (Compiled frame)
 - er.extensions.components.ERXComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=26, line=107 (Compiled frame)
 - wk.webobjects.appserver.WKAbstractComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=30, line=457 (Compiled frame)
 - wk.cheetah.wocomponents.PageWrapper.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=505, line=247 (Interpreted frame)
 - com.webobjects.appserver._private.WOComponentReference.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=11, line=111 (Compiled frame)
 - com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=46, line=121 (Compiled frame)
 - com.webobjects.appserver._private.WODynamicGroup.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=3, line=130 (Compiled frame)
 - com.webobjects.appserver.WOComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=56, line=992 (Compiled frame)
 - er.extensions.components.ERXComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=26, line=107 (Compiled frame)
 - wk.webobjects.appserver.WKAbstractComponent.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=30, line=457 (Compiled frame)
 - wk.cheetah.wocomponents.Customers.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=7, line=349 (Interpreted frame)
 - com.webobjects.appserver.WOSession.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=30, line=1200 (Interpreted frame)
 - er.extensions.appserver.ERXSession.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=11, line=540 (Interpreted frame)
 - wk.webobjects.appserver.WKSession.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=33, line=176 (Interpreted frame)
 - wk.cheetah.Session.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=205, line=657 (Interpreted frame)
 - com.webobjects.appserver.WOApplication.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=100, line=1418 (Interpreted frame)
 - er.extensions.appserver.ERXApplication.appendToResponse(com.webobjects.appserver.WOResponse, com.webobjects.appserver.WOContext) @bci=3, line=1789 (Interpreted frame)
 - com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedPage(com.webobjects.appserver.WOComponent, com.webobjects.appserver.WOSession, com.webobjects.appserver.WOContext, com.webobjects.foundation.NSDictionary) @bci=218, line=230 (Interpreted frame)
 - com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedSession(com.webobjects.appserver.WOSession, com.webobjects.appserver.WOContext, com.webobjects.foundation.NSDictionary) @bci=186, line=287 (Interpreted frame)
 - com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(com.webobjects.appserver.WOApplication, com.webobjects.appserver.WOContext, com.webobjects.foundation.NSDictionary) @bci=84, line=322 (Interpreted frame)
 - com.webobjects.appserver._private.WOComponentRequestHandler._handleRequest(com.webobjects.appserver.WORequest) @bci=109, line=358 (Interpreted frame)
 - com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(com.webobjects.appserver.WORequest) @bci=23, line=432 (Interpreted frame)
 - com.webobjects.appserver.WOApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=41, line=1306 (Compiled frame)
 - er.extensions.appserver.ERXApplication.dispatchRequestImmediately(com.webobjects.appserver.WORequest) @bci=74, line=1887 (Compiled frame)
 - er.extensions.appserver.ERXApplication.dispatchRequest(com.webobjects.appserver.WORequest) @bci=13, line=1852 (Compiled frame)
 - com.webobjects.appserver._private.WOWorkerThread.runOnce() @bci=729, line=173 (Compiled frame)
 - com.webobjects.appserver._private.WOWorkerThread.run() @bci=129, line=254 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)




Thread t@84483: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be imprecise)
 - java.lang.Object.wait() @bci=2, line=474 (Compiled frame)
 - er.extensions.eof.ERXObjectStoreCoordinatorSynchronizer$ProcessChangesQueue.run() @bci=31, line=573 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@84739: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)
 - com.webobjects.appserver.WOApplication$_LifebeatThread.run() @bci=233, line=1233 (Interpreted frame)


Thread t@84995: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)
 - com.webobjects.appserver.WOSessionStore$_SessionTimeoutManager.run() @bci=16, line=110 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=613 (Interpreted frame)


Thread t@85507: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be imprecise)
 - java.lang.Object.wait() @bci=2, line=474 (Compiled frame)
 - com.webobjects.eocontrol.EOObjectStoreCoordinator.lock() @bci=4, line=466 (Compiled frame)
 - com.webobjects.eocontrol.EOEditingContext.lockObjectStore() @bci=41, line=4735 (Compiled frame)
 - er.extensions.eof.ERXEC.lockObjectStore() @bci=7, line=668 (Compiled frame)
 - com.webobjects.eocontrol.EOEditingContext._dispose(boolean) @bci=181, line=1110 (Compiled frame)
 - com.webobjects.eocontrol.EOEditingContext.finalize() @bci=9, line=1178 (Interpreted frame)
 - er.extensions.eof.ERXEC.finalize() @bci=62, line=653 (Interpreted frame)
 - java.lang.ref.Finalizer.runFinalizer() @bci=45, line=83 (Compiled frame)
 - java.lang.ref.Finalizer.access$100(java.lang.ref.Finalizer) @bci=1, line=14 (Compiled frame)
 - java.lang.ref.Finalizer$FinalizerThread.run() @bci=11, line=160 (Interpreted frame)


Thread t@85763: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Compiled frame; information may be imprecise)
 - java.lang.Object.wait() @bci=2, line=474 (Compiled frame)


Thread t@86019: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - com.webobjects.appserver._WORunLoop._acceptInputBeforeDate(com.webobjects.foundation.NSTimestamp) @bci=98, line=217 (Interpreted frame)
 - com.webobjects.appserver._WORunLoop.runBeforeDate(com.webobjects.foundation.NSTimestamp) @bci=39, line=71 (Interpreted frame)
 - com.webobjects.appserver.WOApplication._runOnce() @bci=17, line=775 (Interpreted frame)
 - com.webobjects.appserver.WOApplication.run() @bci=99, line=900 (Interpreted frame)
 - er.extensions.appserver.ERXApplication.run() @bci=292, line=1225 (Interpreted frame)
 - com.webobjects.appserver.WOApplication.main(java.lang.String[], java.lang.Class) @bci=24, line=324 (Interpreted frame)
 - er.extensions.appserver.ERXApplication.main(java.lang.String[], java.lang.Class) @bci=6, line=716 (Interpreted frame)
 - wk.cheetah.Application.main(java.lang.String[]) @bci=3, line=88 (Interpreted frame)
 - sun.reflect.NativeMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=87, line=39 (Interpreted frame)
 - sun.reflect.DelegatingMethodAccessorImpl.invoke(java.lang.Object, java.lang.Object[]) @bci=6, line=25 (Interpreted frame)
 - java.lang.reflect.Method.invoke(java.lang.Object, java.lang.Object[]) @bci=111, line=585 (Interpreted frame)
 - com.webobjects._bootstrap.WOBootstrap.main(java.lang.String[]) @bci=118, line=87 (Interpreted frame)


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