[news.eclipse.technology.emft] Re: [EMF Compare] Pb comparing a SysML mo

[mneidert@xxxxxxxxxxxxxx (Martin Neidert)]

Hi all,


A few months before I experienced some problems while trying to compare a 
SysML model with its last version from an SVN repository using Topcased 
2.5 (and EMF Compare 0.8)

I was advised in this newsgroup to try again with a more recent version of 
EMF Compare.

I did just that yesterday using Topcased 3.0.1 and EMF Compare 1.0. I also 
installed the org.eclipse.emf.compare.team.subversive plugin.

Yet, EMF Compare still crashes when I try to compare my SysML model ... 
but this time the EMF Compare view opens and displays the following 
exception :

java.lang.ArrayIndexOutOfBoundsException: 0
	at 
org.eclipse.emf.compare.ui.viewer.content.part.diff.ModelContentMergeDiffTab.mapDifferences(ModelContentMergeDiffTab.java:607)
	at 
org.eclipse.emf.compare.ui.viewer.content.part.diff.ModelContentMergeDiffTab.setReflectiveInput(ModelContentMergeDiffTab.java:288)
	at 
org.eclipse.emf.compare.ui.viewer.content.part.ModelContentMergeTabFolder.setInput(ModelContentMergeTabFolder.java:309)
	at 
org.eclipse.emf.compare.ui.viewer.content.ModelContentMergeViewer.updateContent(ModelContentMergeViewer.java:749)
	at 
org.eclipse.compare.contentmergeviewer.ContentMergeViewer.internalRefresh(ContentMergeViewer.java:783)
	at 
org.eclipse.compare.contentmergeviewer.ContentMergeViewer.inputChanged(ContentMergeViewer.java:683)
	at 
org.eclipse.jface.viewers.ContentViewer.setInput(ContentViewer.java:274)
	at 
org.eclipse.emf.compare.ui.viewer.content.ModelContentMergeViewer.setInput(ModelContentMergeViewer.java:301)
	at 
org.eclipse.compare.CompareViewerSwitchingPane.setInput(CompareViewerSwitchingPane.java:270)
	at 
org.eclipse.compare.internal.CompareContentViewerSwitchingPane.setInput(CompareContentViewerSwitchingPane.java:132)
	at 
org.eclipse.compare.CompareEditorInput.internalSetContentPaneInput(CompareEditorInput.java:812)
	at 
org.eclipse.compare.CompareEditorInput.access$7(CompareEditorInput.java:810)
	at 
org.eclipse.compare.CompareEditorInput$10.run(CompareEditorInput.java:750)
	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
	at 
org.eclipse.compare.CompareEditorInput.feed1(CompareEditorInput.java:744)
	at 
org.eclipse.compare.CompareEditorInput.feedInput(CompareEditorInput.java:722)
	at 
org.eclipse.compare.CompareEditorInput.createContents(CompareEditorInput.java:545)
	at 
org.eclipse.compare.internal.CompareEditor.createCompareControl(CompareEditor.java:449)
	at 
org.eclipse.compare.internal.CompareEditor.createPartControl(CompareEditor.java:408)
	at 
org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:662)
	at 
org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:462)
..

I get this exception even on very simple SysML models (or UML models ... 
but then the ArrayIndexOutOfBoundsException turns into a 
NullPointerException ... weird ;\) as long as they make references to 
other models.

Am I missing something ? Could anyone help me ? It's sooo frustrating ! :(


Regards,
Martin Neidert