I'll try that for all threads and see what happens. I have changed to using the utility methods in ERXEOGlobalIDUtilities in any case.
Thank you Mark -- Dr. Mark Wardle Consultant Neurologist, Cardiff, UK (Sent from my mobile) > On 5 Apr 2016, at 23:32, Chuck Hill <[email protected]> wrote: > > That code does not look to be the source of this deadlock. As a helpful > hint, having this code set the thread name to _document.description() makes > debugging things like this easier. > > Chuck > > > From: Mark Wardle <[email protected]> > Date: Tuesday, April 5, 2016 at 3:14 PM > To: Chuck Hill <[email protected]> > Cc: WebObjects Dev Apple <[email protected]> > Subject: Re: Deadlock / stack interpretation > > Thanks Chuck. I have looked at this code. I do spin out a separate thread to > do some background processing after a particular request. I thought that > passing a EOGlobalID would be safe. The class below takes a Document (an > immutable and thread-safe POJO), a Report and an ExternalDocumentStore (both > EOEnterpriseObjects). I just wonder whether I should use > ERXEOGlobalIDUtilities.fetchObjectWithGlobalID() instead of > EOEditingContext.faultForGlobalID() as the former seems to be much more > complex and this might be for a good reason? > > > staticclass ReportPublisher implements Runnable { > final Document _document; > final EOGlobalID _reportGlobalId; > final EOGlobalID _storeGlobalId; > > ReportPublisher(final Document doc, Report report, ExternalDocumentStore > store) { > if (doc == null || report == null || store == null) { > thrownew NullPointerException("A document, report and store must be > supplied."); > } > _document = doc; > _reportGlobalId = report.permanentGlobalID(); > _storeGlobalId = store.permanentGlobalID(); > } > > @Override > publicvoid run() { > log.debug("Publishing document '" + _document.description() +"' in background > thread..."); > NSTimestamp started = new NSTimestamp(); > EOEditingContext ec = ERXEC.newEditingContext(); > try { > ec.lock(); > ExternalDocumentStore store = (ExternalDocumentStore) > ec.faultForGlobalID(_storeGlobalId, ec); > if (store != null) { > log.debug("Publishing using repository from class: " > +store.implementationClassName()); > Class<?> clazz = Class.forName(store.implementationClassName()); > Object reposObject = clazz.newInstance(); > if (reposObjectinstanceof DocumentRepository) { > DocumentRepository repos = (DocumentRepository) reposObject; > DocumentReceipt receipt = repos.publishDocument(_document); > NSTimestamp finished = new NSTimestamp(); > log.debug(receipt.message()); > if (receipt.success()) { > log.debug("Successfully published document:" + _document.description()); > Report r = (Report) ec.faultForGlobalID(_reportGlobalId, ec); > PublishedReport pr = r.createPublishedReportsRelationship(); > pr.setExternalDocumentStoreRelationship(store); > pr.setReportRelationship(r); > pr.setDateTimeStarted(started); > pr.setDateTimeFinished(finished); > ec.saveChanges(); > } > } else { > log.debug("Instance of class not a type of DocumentRepository."); > } > } > else { > log.debug("No store found for global id: " +_storeGlobalId); > } > } catch (ClassNotFoundException|InstantiationException|IllegalAccessException > e) { > e.printStackTrace(); > } > finally { > ec.unlock(); > } > } > } > > > Am I doing something wrong converting a EOGlobalID to a proper EO in a > background thread? > > Mark > > >> On 1 Apr 2016, at 06:03, Chuck Hill <[email protected]> wrote: >> >> Hi Mark >> >> Found one Java-level deadlock: >> ============================= >> "WorkerThread127": >> waiting for ownable synchronizer 0x00000000ec9b7b48, (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync), >> which is held by "Thread-5” >> >> So this is waiting for an OSC lock: >> "WorkerThread127": >> at sun.misc.Unsafe.park(Native Method) >> - parking to wait for <0x00000000ec9b7b48> (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync) >> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199) >> at >> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209) >> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285) >> at >> com.webobjects.eocontrol.EOObjectStoreCoordinator.lock(EOObjectStoreCoordinator.java:420) >> at >> com.webobjects.eocontrol.EOEditingContext.lockObjectStore(EOEditingContext.java:4666) >> >> "Thread-5": >> waiting for ownable synchronizer 0x00000000f60726a0, (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync), >> which is held by "WorkerThread5" >> >> This thread is holding the OSC lock and is waiting for an EC lock: >> "Thread-5": >> at sun.misc.Unsafe.park(Native Method) >> - parking to wait for <0x00000000f60726a0> (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync) >> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199) >> at >> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209) >> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285) >> at com.webobjects.eocontrol.EOEditingContext.lock(EOEditingContext.java:4617) >> >> >> "WorkerThread5": >> waiting for ownable synchronizer 0x00000000ec9b7b48, (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync), >> which is held by "Thread-5" >> >> And this thread has the EC lock and is waiting for the OSC lock: >> "WorkerThread5": >> at sun.misc.Unsafe.park(Native Method) >> - parking to wait for <0x00000000ec9b7b48> (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync) >> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199) >> at >> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209) >> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285) >> at >> com.webobjects.eocontrol.EOObjectStoreCoordinator.lock(EOObjectStoreCoordinator.java:420) >> >> What you have here is lock order inversion. How is it that Thread-5 and >> WorkerThread5 are using the same EC? Or is that the Shared EC? Are you >> using the SEC? >> >> Understanding what this line is doing is probably key: >> at com.eldrix.rsdb.model._Report.addToPublishedReports(_Report.java:319) >> >> Chuck >> >> >> From: <[email protected]> on behalf >> of Mark Wardle <[email protected]> >> Date: Thursday, March 31, 2016 at 12:07 PM >> To: WebObjects Dev Apple <[email protected]> >> Subject: Deadlock / stack interpretation >> >> Hi all, >> >> I have a deadlocked app and I am not sure how to interpret the jstack >> output. jstack output is shown below. >> >> I have >> er.extensions.ERXEC.safeLocking=true >> >> >> It looks to me that in each case it is the auto-locking that is causing the >> problem. i.e. I am not manually locking or unlocking. The most complicated >> thread is WorkerThread5 which is initiating a fetch to resolve a KVC lookup >> to perform an aggregated function with a qualifier and so attempting a lock. >> >> Is there anything else I can do to either work out where the problem lies or >> solve it? >> >> Thank you, >> >> Mark >> >> >> Found one Java-level deadlock: >> ============================= >> "WorkerThread127": >> waiting for ownable synchronizer 0x00000000ec9b7b48, (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync), >> which is held by "Thread-5" >> "Thread-5": >> waiting for ownable synchronizer 0x00000000f60726a0, (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync), >> which is held by "WorkerThread5" >> "WorkerThread5": >> waiting for ownable synchronizer 0x00000000ec9b7b48, (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync), >> which is held by "Thread-5" >> >> ===== >> >> "WorkerThread127": >> at sun.misc.Unsafe.park(Native Method) >> - parking to wait for <0x00000000ec9b7b48> (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync) >> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199) >> at >> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209) >> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285) >> at >> com.webobjects.eocontrol.EOObjectStoreCoordinator.lock(EOObjectStoreCoordinator.java:420) >> at >> com.webobjects.eocontrol.EOEditingContext.lockObjectStore(EOEditingContext.java:4666) >> at er.extensions.eof.ERXEC.lockObjectStore(ERXEC.java:793) >> at >> com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4067) >> at er.extensions.eof.ERXEC.objectsWithFetchSpecification(ERXEC.java:1308) >> at >> com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification(EOEditingContext.java:4444) >> at >> er.extensions.eof.ERXFetchSpecification.fetchObjects(ERXFetchSpecification.java:155) >> at com.eldrix.rsdb.model._User.refetchUsers(_User.java:488) >> at com.eldrix.rsdb.model._User.refetchUser(_User.java:517) >> at com.eldrix.rsdb.model._User.refetchUser(_User.java:497) >> at com.eldrix.rsdb.model.User.authenticatedUser(User.java:172) >> [some stuff snipped]… >> >> =========== >> >> "Thread-5": >> at sun.misc.Unsafe.park(Native Method) >> - parking to wait for <0x00000000f60726a0> (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync) >> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199) >> at >> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209) >> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285) >> at com.webobjects.eocontrol.EOEditingContext.lock(EOEditingContext.java:4617) >> at er.extensions.eof.ERXEC.lock(ERXEC.java:571) >> at er.extensions.eof.ERXEC.autoLock(ERXEC.java:703) >> at er.extensions.eof.ERXEC.globalIDForObject(ERXEC.java:932) >> at >> com.webobjects.eoaccess.EODatabaseContext._fireDeferredFaultWithSourceObject(EODatabaseContext.java:2370) >> at >> com.webobjects.eoaccess.EOAccessDeferredFaultHandler.createFaultForDeferredFault(EOAccessDeferredFaultHandler.java:49) >> at >> com.webobjects.eocontrol.EOCustomObject.willReadRelationship(EOCustomObject.java:1279) >> at >> er.extensions.eof.ERXGenericRecord.willReadRelationship(ERXGenericRecord.java:380) >> at >> com.webobjects.eocontrol._EOMutableKnownKeyDictionary$Initializer$_LazyGenericRecordBinding.valueInObject(_EOMutableKnownKeyDictionary.java:614) >> at >> com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634) >> at >> er.extensions.eof.ERXDatabaseContextDelegate.batchFetchToManyFault(ERXDatabaseContextDelegate.java:654) >> at >> er.extensions.eof.ERXDatabaseContextDelegate.databaseContextShouldFetchArrayFault(ERXDatabaseContextDelegate.java:391) >> at sun.reflect.GeneratedMethodAccessor62.invoke(Unknown Source) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:483) >> at >> com.webobjects.foundation.NSSelector._safeInvokeMethod(NSSelector.java:122) >> at com.webobjects.foundation._NSDelegate._perform(_NSDelegate.java:223) >> at com.webobjects.foundation._NSDelegate.perform(_NSDelegate.java:163) >> at >> com.webobjects.eoaccess.EODatabaseContext._fireArrayFault(EODatabaseContext.java:4236) >> at >> com.webobjects.eoaccess.EOAccessArrayFaultHandler.completeInitializationOfObject(EOAccessArrayFaultHandler.java:77) >> at >> com.webobjects.eocontrol._EOCheapCopyMutableArray.willRead(_EOCheapCopyMutableArray.java:39) >> at >> com.webobjects.eocontrol._EOCheapCopyMutableArray.count(_EOCheapCopyMutableArray.java:99) >> at com.webobjects.foundation.NSArray.containsObject(NSArray.java:460) >> at >> com.webobjects.eocontrol.EOCustomObject.includeObjectIntoPropertyWithKey(EOCustomObject.java:904) >> at >> er.extensions.eof.ERXGenericRecord.includeObjectIntoPropertyWithKey(ERXGenericRecord.java:1234) >> at com.eldrix.rsdb.model._Report.addToPublishedReports(_Report.java:319) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:483) >> at >> com.webobjects.foundation.NSSelector._safeInvokeMethod(NSSelector.java:122) >> at >> com.webobjects.eocontrol.EOCustomObject.addObjectToPropertyWithKey(EOCustomObject.java:940) >> at >> com.webobjects.eocontrol.EOCustomObject.addObjectToBothSidesOfRelationshipWithKey(EOCustomObject.java:1028) >> at >> er.extensions.eof.ERXGenericRecord.addObjectToBothSidesOfRelationshipWithKey(ERXGenericRecord.java:584) >> at >> com.eldrix.rsdb.model._Report.createPublishedReportsRelationship(_Report.java:354) >> at >> com.eldrix.news.controllers.ReportController$ReportPublisher.run(ReportController.java:212) >> at java.lang.Thread.run(Thread.java:745) >> >> >> ======= >> >> >> "WorkerThread5": >> at sun.misc.Unsafe.park(Native Method) >> - parking to wait for <0x00000000ec9b7b48> (a >> java.util.concurrent.locks.ReentrantLock$NonfairSync) >> at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870) >> at >> java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199) >> at >> java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209) >> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285) >> at >> com.webobjects.eocontrol.EOObjectStoreCoordinator.lock(EOObjectStoreCoordinator.java:420) >> at >> com.webobjects.eoaccess.EODatabaseContext.registeredDatabaseContextForModel(EODatabaseContext.java:999) >> at >> com.webobjects.eoaccess.EODatabaseContext.registeredDatabaseContextForModel(EODatabaseContext.java:1033) >> at >> er.extensions.eof.ERXEOControlUtilities._aggregateFunctionWithQualifierAndAggregateAttribute(ERXEOControlUtilities.java:862) >> at >> er.extensions.eof.ERXEOControlUtilities.objectCountWithQualifier(ERXEOControlUtilities.java:732) >> at com.eldrix.rsdb.model.User.numberOfUnreadMessages(User.java:342) >> at com.eldrix.rsdb.model.User.hasUnreadMessages(User.java:325) >> at sun.reflect.GeneratedMethodAccessor138.invoke(Unknown Source) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:483) >> at >> com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(NSKeyValueCoding.java:636) >> at >> com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) >> at >> com.webobjects.eocontrol.EOCustomObject.valueForKey(EOCustomObject.java:1498) >> at >> com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447) >> at >> com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:212) >> at >> com.webobjects.eocontrol.EOCustomObject.valueForKeyPath(EOCustomObject.java:1588) >> at >> com.webobjects.foundation.NSKeyValueCodingAdditions$Utility.valueForKeyPath(NSKeyValueCodingAdditions.java:149) >> at >> com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:217) >> at com.webobjects.appserver.WOSession.valueForKeyPath(WOSession.java:1780) >> at >> com.webobjects.foundation.NSKeyValueCodingAdditions$Utility.valueForKeyPath(NSKeyValueCodingAdditions.java:149) >> at >> com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:217) >> at >> com.webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java:1804) >> at >> er.extensions.appserver.navigation.ERXNavigationMenuItem.resolveValue(ERXNavigationMenuItem.java:222) >> at >> er.extensions.appserver.navigation.ERXNavigationMenuItem.hasActivity(ERXNavigationMenuItem.java:229) >> at >> er.extensions.appserver.navigation.ERXNavigationMenuItem.hasActivityAndIsEnabled(ERXNavigationMenuItem.java:235) >> at sun.reflect.GeneratedMethodAccessor38.invoke(Unknown Source) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:483) >> at >> com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(NSKeyValueCoding.java:636) >> at >> com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134) >> at >> com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324) >> at com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736) >> at >> com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447) >> at >> com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:212) >> at >> com.webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java:1804) >> at >> com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(WOKeyValueAssociation.java:50) >> at >> com.webobjects.appserver.WOAssociation.booleanValueInComponent(WOAssociation.java:276) >> at >> com.webobjects.appserver._private.WOConditional.evaluateCondition(WOConditional.java:60) >> at >> com.webobjects.appserver._private.WOConditional.invokeAction(WOConditional.java:85) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at >> com.webobjects.appserver._private.WOConditional.invokeAction(WOConditional.java:86) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WOGenericContainer.invokeAction(WOGenericContainer.java:29) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at >> com.webobjects.appserver._private.WOConditional.invokeAction(WOConditional.java:86) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java:1079) >> at er.extensions.components.ERXComponent.invokeAction(ERXComponent.java:168) >> at >> er.extensions.components.ERXNonSynchronizingComponent.invokeAction(ERXNonSynchronizingComponent.java:66) >> at >> com.webobjects.appserver._private.WOComponentReference.invokeAction(WOComponentReference.java:127) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at >> er.extensions.components._private.ERXWORepetition.invokeAction(ERXWORepetition.java:547) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WOGenericContainer.invokeAction(WOGenericContainer.java:29) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at >> com.webobjects.appserver._private.WOConditional.invokeAction(WOConditional.java:86) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java:1079) >> at er.extensions.components.ERXComponent.invokeAction(ERXComponent.java:168) >> at >> er.extensions.components.ERXNonSynchronizingComponent.invokeAction(ERXNonSynchronizingComponent.java:66) >> at >> er.extensions.appserver.navigation.ERXNavigationMenu.invokeAction(ERXNavigationMenu.java:150) >> at >> com.webobjects.appserver._private.WOComponentReference.invokeAction(WOComponentReference.java:127) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java:1079) >> at er.extensions.components.ERXComponent.invokeAction(ERXComponent.java:168) >> at >> er.extensions.components.ERXNonSynchronizingComponent.invokeAction(ERXNonSynchronizingComponent.java:66) >> at >> com.webobjects.appserver._private.WOComponentReference.invokeAction(WOComponentReference.java:127) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> er.extensions.components.conditionals.ERXWOConditional.invokeChildrenAction(ERXWOConditional.java:116) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at >> er.extensions.components.conditionals.ERXWOConditional.invokeAction(ERXWOConditional.java:108) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java:1079) >> at er.extensions.components.ERXComponent.invokeAction(ERXComponent.java:168) >> at >> er.extensions.components.ERXNonSynchronizingComponent.invokeAction(ERXNonSynchronizingComponent.java:66) >> at >> com.webobjects.appserver._private.WOComponentReference.invokeAction(WOComponentReference.java:127) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105) >> at >> com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115) >> at com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java:1079) >> at er.extensions.components.ERXComponent.invokeAction(ERXComponent.java:168) >> at com.webobjects.appserver.WOSession.invokeAction(WOSession.java:1357) >> at >> com.webobjects.appserver.WOApplication.invokeAction(WOApplication.java:1745) >> at >> er.extensions.appserver.ajax.ERXAjaxApplication.invokeAction(ERXAjaxApplication.java:119) >> at >> er.extensions.appserver.ERXApplication.invokeAction(ERXApplication.java:2006) >> at er.ajax.AjaxResponse.generateResponse(AjaxResponse.java:67) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedPage(WOComponentRequestHandler.java:229) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedSession(WOComponentRequestHandler.java:298) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(WOComponentRequestHandler.java:332) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler._handleRequest(WOComponentRequestHandler.java:369) >> at >> com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(WOComponentRequestHandler.java:445) >> at er.ajax.AjaxRequestHandler.handleRequest(AjaxRequestHandler.java:20) >> at >> com.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.java:1687) >> at >> er.extensions.appserver.ERXApplication.dispatchRequestImmediately(ERXApplication.java:2127) >> at >> er.extensions.appserver.ERXApplication.dispatchRequest(ERXApplication.java:2092) >> at >> com.webobjects.appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144) >> at >> com.webobjects.appserver._private.WOWorkerThread.run(WOWorkerThread.java:226) >> at java.lang.Thread.run(Thread.java:745) >> >> Found 1 deadlock. >
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