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/AbstractTreeViewer.java
continue;
				}
				if(treePath.equals(getTreePathFromItem((Item) candidate), getComparer())) {
					return candidate;
				}
			}
			return null;
		}
		return findItem(elementOrTreePath);
	}
    /**
     * Recursively expands the subtree rooted at the given widget to the given
     * level.
     * <p>
     * </p>
     * Note that the default implementation of this method does not call <code>setRedraw</code>.
     * 
     * @param widget
     *           the widget
     * @param level
     *           non-negative level, or <code>ALL_LEVELS</code> to collapse
     *           all levels of the tree
     */
    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) {