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
Widget w = findItem(parent);
    				if (w instanceof Item) {
    					Item item = (Item) w;
    					path = getTreePathFromItem(item);
    				}
    				if (path == null) {
    					path = new TreePath(new Object[] { parent });
    				}
    			}
    			Object[] result = tpcp.getChildren(path);
                if (result != null) {
					return result;
				}
    		} else if (cp instanceof ITreeContentProvider) {
    			ITreeContentProvider tcp = (ITreeContentProvider) cp;
                Object[] result = tcp.getChildren(parent);
                if (result != null) {
					return result;
				}
    		}
        }
        return new Object[0];
    }
    /**
     * Returns all selected items for the given SWT control.
     * 
     * @param control
     *           the control
     * @return the list of selected items
     */