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
String oldExtension= ""; 
		if (originalElement instanceof IFileEditorInput) {
			IFile file= ((IFileEditorInput) originalElement).getFile();
			if (file != null) {
				String ext= file.getFileExtension();
				if (ext != null)
					oldExtension= ext;
			}
		}
		
		String newExtension= ""; 
		if (movedElement instanceof IFileEditorInput) {
			IFile file= ((IFileEditorInput) movedElement).getFile();
			if (file != null)
				newExtension= file.getFileExtension();
		}
		
		return oldExtension.equals(newExtension);
	}
	/*
	 * @see org.eclipse.ui.texteditor.AbstractDecoratedTextEditor#isPrefQuickDiffAlwaysOn()
	 */
	protected boolean isPrefQuickDiffAlwaysOn() {
		
		
		IPreferenceStore store= getPreferenceStore();
		return store.getBoolean(AbstractDecoratedTextEditorPreferenceConstants.QUICK_DIFF_ALWAYS_ON);
	}
}