Bug 67851 SelectionListenerWithASTManager should synchronized access to listener list
RC2, for post 3.0: SelectionListenerWithASTManager.PartListenerGroup should protect the access to the ListenerList from the job.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/viewsupport/SelectionListenerWithASTManager.java
/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html