| Merge issue "because its parent hasn't been merged yet" [message #1768694] |
Fri, 21 July 2017 13:18  |
Eclipse User |
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Hi folks,
Hoping someone has an answer for me. :) We have had some code we've been moving forward since Juno & Luna with EMF Compare. It's not been updated in several years, but now with EMF Compare in Oxygen we're seeing a strange IllegalStateException: "java.lang.IllegalStateException: Couldn't move element because its parent hasn't been merged yet: MERGING LEFT MOVE"
I'm hoping it's just a new step we need to add for the latest release of EMF Compare, but really have no clue and my Google-fu has come up short.
Thank you in advance to anyone who has some ideas. I can point you at our github repo if you need more context
Here's the code (I've marked the line where it throws the exception with an arrow):
final List<Diff> generatedDifferences = comparison.getDifferences();
if (generatedDifferences.size() > 0) {
final EditingDomain domain = AdapterFactoryEditingDomain.getEditingDomainFor(_switchYard);
final InternalTransaction transaction;
if (domain instanceof TransactionalEditingDomainImpl) {
transaction = ((TransactionalEditingDomainImpl) domain).getActiveTransaction();
} else {
transaction = null;
}
if (transaction != null) {
transaction.pause();
}
try {
if (_generated.getContents().size() == 0) {
if (generatedResource.getContents().size() > 0) {
_generated.getContents().addAll(generatedResource.getContents());
generatedResource.getContents().clear();
}
} else {
final IBatchMerger merger = new BatchMerger(EMFCompareRCPPlugin.getDefault().getMergerRegistry(), new Predicate<Diff>() {
public boolean apply(Diff object) {
return object.getKind() != DifferenceKind.MOVE;
}
});
--------> merger.copyAllLeftToRight(generatedDifferences, new BasicMonitor());
pruneMissingReferences();
}
} finally {
if (transaction != null) {
transaction.resume(null);
}
}
And here's the exception:
!ENTRY org.eclipse.graphiti.ui 4 0 2017-07-21 10:37:45.267
!MESSAGE GFCommandStack.execute(Command) java.lang.IllegalStateException: Couldn't move element because its parent hasn't been merged yet: MERGING LEFT MOVE org.eclipse.emf.compare.internal.spec.ReferenceChangeSpec{reference=CamelImplementationType.xml,value=XMLDSLType@6aeabcb0 route.xml,parentMatch=org.eclipse.emf.compare.internal.spec.MatchSpec{left=CamelImplementationType@73a95ff8,right=<null>,origin=<null>,#differences=1,#submatches=1},match of value=org.eclipse.emf.compare.internal.spec.MatchSpec{left=XMLDSLType@6aeabcb0 route.xml,right=XMLDSLType@72425503 route.xml,origin=<null>,#differences=0,#submatches=0}}
!STACK 0
java.lang.IllegalStateException: Couldn't move element because its parent hasn't been merged yet: MERGING LEFT MOVE org.eclipse.emf.compare.internal.spec.ReferenceChangeSpec{reference=CamelImplementationType.xml,value=XMLDSLType@6aeabcb0 route.xml,parentMatch=org.eclipse.emf.compare.internal.spec.MatchSpec{left=CamelImplementationType@73a95ff8,right=<null>,origin=<null>,#differences=1,#submatches=1},match of value=org.eclipse.emf.compare.internal.spec.MatchSpec{left=XMLDSLType@6aeabcb0 route.xml,right=XMLDSLType@72425503 route.xml,origin=<null>,#differences=0,#submatches=0}}
at org.eclipse.emf.compare.merge.ReferenceChangeMerger.moveElement(ReferenceChangeMerger.java:204)
at org.eclipse.emf.compare.merge.ReferenceChangeMerger.accept(ReferenceChangeMerger.java:136)
at org.eclipse.emf.compare.merge.AbstractMerger.copyDiff(AbstractMerger.java:773)
at org.eclipse.emf.compare.merge.AbstractMerger.copyLeftToRight(AbstractMerger.java:796)
at org.eclipse.emf.compare.merge.BatchMerger.copyAllLeftToRight(BatchMerger.java:109)
at org.switchyard.tools.ui.editor.model.merge.MergedModelAdapterFactory.processUpdatesToGenerated(MergedModelAdapterFactory.java:168)
at org.switchyard.tools.ui.editor.impl.SwitchyardSCAEditor.synchronizeGeneratedModel(SwitchyardSCAEditor.java:560)
at org.switchyard.tools.ui.editor.diagram.SynchronizeGeneratedModelFeature.execute(SynchronizeGeneratedModelFeature.java:75)
at org.eclipse.graphiti.features.custom.AbstractCustomFeature.execute(AbstractCustomFeature.java:83)
at org.eclipse.graphiti.internal.command.GenericFeatureCommandWithContext.execute(GenericFeatureCommandWithContext.java:64)
at org.eclipse.graphiti.ui.internal.command.GefCommandWrapper.execute(GefCommandWrapper.java:51)
at org.eclipse.graphiti.ui.internal.editor.EmfOnGefCommand.execute(EmfOnGefCommand.java:54)
at org.eclipse.graphiti.internal.command.GFPreparableCommand2.doExecute(GFPreparableCommand2.java:43)
at org.eclipse.emf.transaction.RecordingCommand.execute(RecordingCommand.java:135)
at org.eclipse.emf.workspace.EMFCommandOperation.doExecute(EMFCommandOperation.java:119)
at org.eclipse.emf.workspace.AbstractEMFOperation.execute(AbstractEMFOperation.java:150)
at org.eclipse.core.commands.operations.DefaultOperationHistory.execute(DefaultOperationHistory.java:488)
at org.eclipse.emf.workspace.impl.WorkspaceCommandStackImpl.doExecute(WorkspaceCommandStackImpl.java:208)
at org.eclipse.emf.transaction.impl.AbstractTransactionalCommandStack.execute(AbstractTransactionalCommandStack.java:165)
at org.eclipse.graphiti.ui.internal.editor.GFWorkspaceCommandStackImpl.execute(GFWorkspaceCommandStackImpl.java:97)
at org.eclipse.graphiti.ui.internal.editor.GFCommandStack.execute(GFCommandStack.java:138)
at org.eclipse.graphiti.ui.editor.DiagramBehavior.executeFeature(DiagramBehavior.java:1133)
at org.switchyard.tools.ui.editor.impl.SwitchyardSCAEditor$3$1.run(SwitchyardSCAEditor.java:679)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:37)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4213)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3820)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1155)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1044)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:151)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
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:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
at org.eclipse.equinox.launcher.Main.main(Main.java:1472)
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