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?
static class 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) {
throw new NullPointerException("A document,
report and store must be supplied.");
}
_document = doc;
_reportGlobalId = report.permanentGlobalID();
_storeGlobalId = store.permanentGlobalID();
}
@Override
public void 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 (reposObject instanceof
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$NonfairSync.lock(ReentrantLock.java:209)
> at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285)
> at
> com.webobjects.eocontrol.EOObjectStoreCoordinator.lock(EOObjectStoreCoordinator.java:420)
>
> What you have here is lock order inversion. How is it that Thread-5 and
> WorkerThread5 are using the same EC? Or is that the Shared EC? Are you
> using the SEC?
>
> Understanding what this line is doing is probably key:
> at com.eldrix.rsdb.model._Report.addToPublishedReports(_Report.java:319)
>
> Chuck
>
>
> From: <[email protected]
> <mailto:[email protected]>> on
> behalf of Mark Wardle <[email protected] <mailto:[email protected]>>
> Date: Thursday, March 31, 2016 at 12:07 PM
> To: WebObjects Dev Apple <[email protected]
> <mailto:[email protected]>>
> Subject: Deadlock / stack interpretation
>
> Hi all,
>
> I have a deadlocked app and I am not sure how to interpret the jstack output.
> jstack output is shown below.
>
> I have
> er.extensions.ERXEC.safeLocking=true
>
>
> It looks to me that in each case it is the auto-locking that is causing the
> problem. i.e. I am not manually locking or unlocking. The most complicated
> thread is WorkerThread5 which is initiating a fetch to resolve a KVC lookup
> to perform an aggregated function with a qualifier and so attempting a lock.
>
> Is there anything else I can do to either work out where the problem lies or
> solve it?
>
> Thank you,
>
> Mark
>
>
> Found one Java-level deadlock:
> =============================
> "WorkerThread127":
> waiting for ownable synchronizer 0x00000000ec9b7b48, (a
> java.util.concurrent.locks.ReentrantLock$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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