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/AbstractTreeViewer.java
/**
	 * Creates all children for the given widget.
	 * <p>
	 * The default implementation of this framework method assumes that <code>widget.getData()</code>
	 * returns the element corresponding to the node. Note: the node is not
	 * visually expanded! You may have to call <code>parent.setExpanded(true)</code>.
	 * </p>
	 * 
	 * @param widget
	 *           the widget
	 */
	protected void createChildren(final Widget widget) {
		final Item[] tis = getChildren(widget);
		if (tis != null && tis.length > 0) {
			Object data = tis[0].getData();
			if (data != null)
				return; 
		}
		BusyIndicator.showWhile(widget.getDisplay(), new Runnable() {
			public void run() {
				
				
				if (tis != null) {
					for (int i = 0; i < tis.length; i++) {
						if (tis[i].getData() != null){
							disassociate(tis[i]);
							Assert.isTrue(tis[i].getData() == null, "Second or later child is non -null");
							
						}
						tis[i].dispose();