Bug 108102 [Viewers] Project expands in wrong working set
I am using "Show->Working Sets" in the package explorer. Some of the working sets contain the same project: Working Set-1: - Project-A - Project-B - Project-C Working Set-2: - Project-B - Project-C - Project-D If I now double-click "Working Set-1.Project-B" "Project-B" in working set "Working Set-2" will be expanded. If the working set "Working Set-2" itself is not expanded it will seem as if nothing happens, but after expanding "Working Set-2" one can see the changed state of the project. Double-clicking "Working Set-2.Project-B" works as expected.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
* into grouping by working sets, which requires viewers to support multiple 
     * equal elements.  See bug 76482 for more details.  This support will
     * likely be removed in Eclipse 3.2 in favour of proper support for
     * multiple equal elements. 
     * </p>
     * @param widget
     *            the widget for the element
     * @param element
     *            the element
     * @param properties
     *            the properties that have changed, or <code>null</code> to
     *            indicate unknown
     */
	protected void internalUpdate(Widget widget, Object element, String[] properties) {
		boolean needsRefilter = false;
		if (properties != null) {
			for (int i = 0; i < properties.length; ++i) {
				needsRefilter = needsRefilter(element, properties[i]);
				if (needsRefilter) {
					break;
				}
			}
		}
		if (needsRefilter) {
			refresh();
			return;
		}
		boolean needsUpdate;
		if (properties == null) {
			needsUpdate = true;