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
* @param item
	 *            the corresponding widget
	 */
	protected void mapElement(Object element, Widget item) {
		if (elementMap != null)
			elementMap.put(element, item);
	}
	/**
	 * Determines whether a change to the given property of the given element
	 * would require refiltering and/or resorting.
	 * <p>
	 * This method is internal to the framework; subclassers should not call
	 * this method.
	 * </p>
	 * 
	 * @param element
	 *            the element
	 * @param property
	 *            the property
	 * @return <code>true</code> if refiltering is required, and
	 *         <code>false</code> otherwise
	 */
	protected boolean needsRefilter(Object element, String property) {
		if (sorter != null && sorter.isSorterProperty(element, property))
			return true;
		if (filters != null) {
			for (int i = 0, n = filters.size(); i < n; ++i) {
				ViewerFilter filter = (ViewerFilter) filters.get(i);
				if (filter.isFilterProperty(element, property))
					return true;