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
* expanded but are under a collapsed ancestor.
	 * <p>
	 * This method is typically used when preserving the interesting state of a
	 * viewer; <code>setExpandedElements</code> is used during the restore.
	 * </p>
	 * 
	 * @return the array of expanded elements
	 * @see #setExpandedElements
	 */
	public Object[] getExpandedElements() {
		ArrayList v = new ArrayList();
		internalCollectExpanded(v, getControl());
		return v.toArray();
	}
	/**
	 * Returns whether the node corresponding to the given element is expanded
	 * or collapsed.
	 * 
	 * @param element
	 *           the element
	 * @return <code>true</code> if the node is expanded, and <code>false</code>
	 *         if collapsed
	 */
	public boolean getExpandedState(Object element) {
		Assert.isNotNull(element);
		Widget item = findItem(element);
		if (item instanceof Item)
			return getExpanded((Item) item);
		return false;
	}