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Bug 371122 - [implementation] ConcurrentModificationException from AbstractDocument.getPositions(...)
Summary: [implementation] ConcurrentModificationException from AbstractDocument.getPos...
Status: CLOSED DUPLICATE of bug 69289
Alias: None
Product: Platform
Classification: Eclipse Project
Component: Text (show other bugs)
Version: 3.6.2   Edit
Hardware: PC All
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Platform-Text-Inbox CLA
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Reported: 2012-02-09 13:58 EST by Jared Burns CLA
Modified: 2012-02-10 01:56 EST (History)
1 user (show)

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Description Jared Burns CLA 2012-02-09 13:58:14 EST 
We have intermittently seen the following ConcurrentModificationException from AbstractDocument in our JUnit tests for years, against multiple major versions of Eclipse, but it looks like no one has filed this defect yet.

It appears that AbstractDocument is missing synchronization around access to the fPositions map and the List values it contains.

Caused by: java.util.ConcurrentModificationException
	at java.util.AbstractList$SimpleListIterator.next(AbstractList.java:64)
	at java.util.AbstractList$SubAbstractList$SubAbstractListIterator.next(AbstractList.java:206)
	at org.eclipse.jface.text.AbstractDocument.getPositions(AbstractDocument.java:1715)
	at org.eclipse.jface.text.source.AnnotationModel.getRegionAnnotationIterator(AnnotationModel.java:737)
	at org.eclipse.jface.text.source.AnnotationModel.getAnnotationIterator(AnnotationModel.java:699)
	at org.eclipse.jface.text.source.AnnotationModel.getAnnotationIterator(AnnotationModel.java:710)
	at org.eclipse.jface.text.source.AnnotationRulerColumn.doPaint1(AnnotationRulerColumn.java:718)
	at org.eclipse.jface.text.source.AnnotationRulerColumn.doubleBufferPaint(AnnotationRulerColumn.java:532)
	at org.eclipse.jface.text.source.AnnotationRulerColumn.redraw(AnnotationRulerColumn.java:811)
	at org.eclipse.jface.text.source.AnnotationRulerColumn$6.run(AnnotationRulerColumn.java:798)
	at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
	at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
Comment 1 Dani Megert CLA 2012-02-10 01:56:36 EST 

*** This bug has been marked as a duplicate of bug 69289 ***