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
protected void internalExpandToLevel(Widget widget, int level) {
		if (level == ALL_LEVELS || level > 0) {
			createChildren(widget);
			if (widget instanceof Item)
				setExpanded((Item) widget, true);
			if (level == ALL_LEVELS || level > 1) {
				Item[] children = getChildren(widget);
				if (children != null) {
					int newLevel =
						(level == ALL_LEVELS ? ALL_LEVELS : level - 1);
					for (int i = 0; i < children.length; i++)
						internalExpandToLevel(children[i], newLevel);
				}
			}
		}
	}
	/**
	 * Non-recursively tries to find the given element as a child of the given
	 * parent item.
	 * 
	 * @param parent
	 *           the parent item
	 * @param element
	 *           the element
	 * @return Widget
	 */
	private Widget internalFindChild(Item parent, Object element) {
		Item[] items = getChildren(parent);
		for (int i = 0; i < items.length; i++) {
			Item item = items[i];