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
* <p>
	 * This method is typically used when restoring the interesting state of a
	 * viewer captured by an earlier call to <code>getExpandedElements</code>.
	 * </p>
	 * 
	 * @param elements
	 *           the array of expanded elements
	 * @see #getExpandedElements
	 */
	public void setExpandedElements(Object[] elements) {
		assertElementsNotNull(elements);
		CustomHashtable expandedElements = newHashtable(elements.length * 2 + 1);
		for (int i = 0; i < elements.length; ++i) {
		    Object element = elements[i];
			
			internalExpand(element, false);
			expandedElements.put(element, element);
		}
		internalSetExpanded(expandedElements, getControl());
	}
	/**
	 * Sets whether the node corresponding to the given element is expanded or
	 * collapsed.
	 * 
	 * @param element
	 *           the element
	 * @param expanded
	 *           <code>true</code> if the node is expanded, and <code>false</code>
	 *           if collapsed
	 */