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
ArrayList result = new ArrayList(items.size());
        for(Iterator it = items.iterator(); it.hasNext();) {
        	Item item = (Item) it.next();
        	Object data = item.getData();
        	if (data != null) {
        		result.add(data);
        	}
        }
        return result.toArray();
    }
    /**
     * Returns whether the node corresponding to the given element or tree path is expanded
     * or collapsed.
     * 
     * @param elementOrTreePath
     *           the element
     * @return <code>true</code> if the node is expanded, and <code>false</code>
     *         if collapsed
     */
    public boolean getExpandedState(Object elementOrTreePath) {
        Assert.isNotNull(elementOrTreePath);
        Widget item = internalGetWidgetToSelect(elementOrTreePath);
        if (item instanceof Item) {
			return getExpanded((Item) item);
		}
        return false;
    }
    /**
     * Returns the number of child items of the given SWT control.
     *