Bug 59050 Dead lock in JavaReconciler
Using build I200404131323. I was editing several files and haven't save them immediately when my eclipse hanged infinitely... Looking at console, the exception seems to show that I was trying to open a popup-menu on a new created class, but I'm not completely sure that dead-lock occurred exactly at this moment. I'll add complete console output including VM Dump Thread which identifies the dead-lock... Set severity 'critical' as I have to cancel my eclipse session without saving and lost my modifications in modified editors...
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
* This method may be called inside an async call posted
			 * to the UI thread, so protect against intermediate disposal
			 * of the editor.
			 */
			if (getSourceViewer() == null)
				return;
			
			try {
				
				int startOffset, endOffset;
				int revealStartOffset, revealEndOffset; 
				if (showsHighlightRangeOnly()) {
					IJavaElement newStartElement= fStartOffset.getElement();
					startOffset= fStartOffset.getRememberedOffset(newStartElement);
					revealStartOffset= fStartOffset.getRevealOffset(newStartElement, startOffset);
					if (revealStartOffset == -1)
						startOffset= -1;
					
					IJavaElement newEndElement= fEndOffset.getElement();
					endOffset= fEndOffset.getRememberedOffset(newEndElement);
					revealEndOffset= fEndOffset.getRevealOffset(newEndElement, endOffset);
					if (revealEndOffset == -1)
						endOffset= -1;
				} else {
					startOffset= fStartOffset.getOffset();
					revealStartOffset= startOffset;
					endOffset= fEndOffset.getOffset();
					revealEndOffset= endOffset;
				}