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| Re: CDO ArrayIndexOutOfBoundsException on rollback due to contains optimization in DelegatingEcoreEL [message #1234747 is a reply to message #1234128] |
Wed, 22 January 2014 18:09   |
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Hi Martin,
Can you provide me with a test case or example code that I can use to reproduce this issue and play with it? Ideally you
attach it to a bugzilla. Please have a look at AbstractCDOTest or, better, one of its many subclasses.
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
Am 21.01.2014 14:21, schrieb Martin Platter:
> Hi all,
>
> I get a ArrayIndexOutOfBoundsException on a CDO rollback during the computation of the knowElementRemovals in
> ObservableListContentProvider. This happens because on a removeAll a contains call happens to the DelegatingEcoreEList
> where (as an optimization) the inverse EReference gets used in the contains method. The call to that EObject is not
> valid anymore, because CDO has already rolled back that Object which yields to a ArrayIndexOutOfBoundsException.
> Here the relevant parts of the stack trace:
>
> !ENTRY org.eclipse.core.databinding.observable 4 2 2014-01-21 10:07:27.792
> !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.core.databinding.observable".
> !STACK 0
> java.lang.ArrayIndexOutOfBoundsException: 0
> at org.eclipse.emf.internal.cdo.CDOObjectImpl$TransientStore.getValue(CDOObjectImpl.java:1376)
> at org.eclipse.emf.internal.cdo.CDOObjectImpl$TransientStore.get(CDOObjectImpl.java:1424)
> at org.eclipse.emf.internal.cdo.CDOObjectImpl.dynamicGet(CDOObjectImpl.java:595)
> at
> org.eclipse.emf.ecore.impl.EStructuralFeatureImpl$InternalSettingDelegateSingleEObject.dynamicGet(EStructuralFeatureImpl.java:2574)
> at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:1027)
> at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:1011)
> at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:1003)
> at org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:998)
> at org.eclipse.emf.ecore.util.DelegatingEcoreEList.contains(DelegatingEcoreEList.java:477)
> at java.util.Collections$UnmodifiableCollection.contains(Collections.java:1057)
> at
> org.eclipse.core.internal.databinding.property.list.SimplePropertyObservableList.contains(SimplePropertyObservableList.java:131)
> at org.eclipse.core.databinding.observable.list.ObservableList.contains(ObservableList.java:78)
> at
> org.eclipse.core.databinding.observable.DecoratingObservableCollection.contains(DecoratingObservableCollection.java:53)
> at java.util.AbstractSet.removeAll(AbstractSet.java:176)
> at
> org.eclipse.jface.databinding.viewers.ObservableListContentProvider$Impl.handleListChange(ObservableListContentProvider.java:107)
> at org.eclipse.core.databinding.observable.list.ListChangeEvent.dispatch(ListChangeEvent.java:61)
> at org.eclipse.core.databinding.observable.ChangeManager.fireEvent(ChangeManager.java:119)
> at
> org.eclipse.core.databinding.observable.list.DecoratingObservableList.fireListChange(DecoratingObservableList.java:59)
> at
> org.eclipse.core.databinding.observable.list.DecoratingObservableList.handleListChange(DecoratingObservableList.java:97)
> at
> org.eclipse.core.databinding.observable.list.DecoratingObservableList$1.handleListChange(DecoratingObservableList.java:71)
> at org.eclipse.core.databinding.observable.list.ListChangeEvent.dispatch(ListChangeEvent.java:61)
> at org.eclipse.core.databinding.observable.ChangeManager.fireEvent(ChangeManager.java:119)
> at org.eclipse.core.databinding.observable.list.ObservableList.fireListChange(ObservableList.java:73)
> at
> org.eclipse.core.internal.databinding.observable.masterdetail.DetailObservableList.access$1(DetailObservableList.java:1)
> at
> org.eclipse.core.internal.databinding.observable.masterdetail.DetailObservableList$1.handleListChange(DetailObservableList.java:48)
> at org.eclipse.core.databinding.observable.list.ListChangeEvent.dispatch(ListChangeEvent.java:61)
> at org.eclipse.core.databinding.observable.ChangeManager.fireEvent(ChangeManager.java:119)
> at org.eclipse.core.databinding.observable.ChangeSupport.fireEvent(ChangeSupport.java:39)
> at org.eclipse.core.databinding.observable.list.AbstractObservableList.fireListChange(AbstractObservableList.java:117)
> at
> org.eclipse.core.internal.databinding.property.list.SimplePropertyObservableList.notifyIfChanged(SimplePropertyObservableList.java:567)
> at
> org.eclipse.core.internal.databinding.property.list.SimplePropertyObservableList.access$3(SimplePropertyObservableList.java:559)
> at
> org.eclipse.core.internal.databinding.property.list.SimplePropertyObservableList$2.run(SimplePropertyObservableList.java:78)
> at org.eclipse.core.databinding.observable.Realm$1.run(Realm.java:148)
> at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> at org.eclipse.core.databinding.observable.Realm.safeRun(Realm.java:152)
> at org.eclipse.core.databinding.observable.Realm.exec(Realm.java:170)
> at
> org.eclipse.core.internal.databinding.property.list.SimplePropertyObservableList$1.handleEvent(SimplePropertyObservableList.java:74)
> at
> org.eclipse.emf.databinding.internal.EMFPropertyListener$EMFListPropertyListener.notifyChanged(EMFPropertyListener.java:165)
> at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)
> at org.eclipse.emf.common.notify.impl.NotificationChainImpl.dispatch(NotificationChainImpl.java:98)
> at org.eclipse.emf.common.notify.impl.NotificationChainImpl.dispatch(NotificationChainImpl.java:86)
> at org.eclipse.emf.internal.cdo.transaction.CDOTransactionImpl.handleRollback(CDOTransactionImpl.java:1604)
> at
> org.eclipse.emf.internal.cdo.transaction.CDOSingleTransactionStrategyImpl.rollback(CDOSingleTransactionStrategyImpl.java:115)
> at org.eclipse.emf.internal.cdo.transaction.CDOTransactionImpl.rollback(CDOTransactionImpl.java:1230)
>
>
>
> To me this seems to be a bug in the contains method of the DelegatingEcoreEList (I use ecore version
> 2.9.0.v20130528-0742).
>
> Does anyone know how to fix this?
>
> Greetings
> Martin
>
>
Cheers
/Eike
----
http://www.esc-net.de
http://thegordian.blogspot.com
http://twitter.com/eikestepper
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