Bug 66439 Copy of Class causes update error in package explorer
RC1 RHEL JDK 1.4.2_02 Motif I have experienced a problem where I copy a java file and paste it into the same package, accepting the default new name (CopyOfClass.java) However, the package view does not list the class, but it does list 2 instances of the last class in the package (note that I am using the hierarchical view). The file is aparently inserted in the correct location, but the name->class mapping is incorrect: clicking on classes that appear before where the new class should be inserted brings up the correct class, but clicking on classes that appear after the inserted class brings up a different class than the one selected. Restarting eclipse causes the problem to go away
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
private ListenerList postSelectionChangedListeners = new ListenerList(1);
	/**
	 * The safe runnable used to update an item.
	 */
	class UpdateItemSafeRunnable extends SafeRunnable {
		private Widget widget;
		private Object element;
		private boolean fullMap;
		UpdateItemSafeRunnable(Widget widget, Object element, boolean fullMap) {
			this.widget = widget;
			this.element = element;
			this.fullMap = fullMap;
		}
		public void run() {
			doUpdateItem(widget, element, fullMap);
		}
	}
	/**
	 * Creates a structured element viewer. The viewer has no input, no content
	 * provider, a default label provider, no sorter, and no filters.
	 */
	protected StructuredViewer() {
		
	}
	/**
	 * Adds a listener for double-clicks in this viewer. Has no effect if an
	 * identical listener is already registered.
	 * 
	 * @param listener
	 *            a double-click listener