Bug 63898 [reconciling] Multiple threads calling IJavaReconcilingListener#reconciled() at the same time
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/CompilationUnitEditor.java
private int fLine;
		
		private int fColumn;
		
		private IJavaElement fElement;
		
		private int fElementLine;
		
		/**
		 * Store visual properties of the given offset.  
		 * 
		 * @param offset Offset in the document
		 */
		public void setOffset(int offset) {
			try {
				IDocument document= getSourceViewer().getDocument();