Bug 343989

Description Daniel Johnson 2011-04-27 12:29:21 EDT

I have a class that extends org.eclipse.ui.forms.editor.FormEditor and in the addPages() method I create a StructuredTextEditor page:

source = new StructuredTextEditor();
index = addPage(source, getEditorInput());
setActivePage(index);

When I close the editor I get this exception:

!ENTRY org.eclipse.wst.sse.ui 4 4 2011-04-27 08:55:55.899
!MESSAGE problem with reconciling
!STACK 0
java.lang.NullPointerException
	at org.eclipse.wst.sse.ui.internal.projection.AbstractStructuredFoldingStrategy.markInvalidAnnotationsForDeletion(AbstractStructuredFoldingStrategy.java:294)
	at org.eclipse.wst.sse.ui.internal.projection.AbstractStructuredFoldingStrategy.reconcile(AbstractStructuredFoldingStrategy.java:194)
	at org.eclipse.wst.sse.ui.internal.reconcile.DocumentRegionProcessor.process(DocumentRegionProcessor.java:312)
	at org.eclipse.wst.sse.ui.internal.reconcile.StructuredRegionProcessor.process(StructuredRegionProcessor.java:248)
	at org.eclipse.wst.sse.ui.internal.reconcile.DirtyRegionProcessor.run(DirtyRegionProcessor.java:667)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

I thought maybe I wasn't disposing something correctly, so I put a break point in my dispose() method, but the exception gets thrown between closing the editor and before the dispose() method gets called.

I tried stepping through org.eclipse.ui.internal.WorkbenchPage closeEditors() method, but when I step through it the exception does not get thrown, so my guess is some running jobs are not properly cancelled when the editor is closed. I am using org.eclipse.wst.see.ui 1.2.2.v201008232126