Bug 5492 Open in Hierarchy method list is enabled even when nothing is selected
206 1) Ensure no item is selected in the hierachy view's member list 2) Right click - not on an item 3) Open is present and enabled 4) Select Open, nothing happens
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/MethodsViewer.java
public MethodsViewerSorter() {
		}
			
		public int compare(Viewer viewer, Object e1, Object e2) {
			int cat1 = category(e1);
			int cat2 = category(e2);
			if (cat1 != cat2)
				return cat1 - cat2;
			
			String name1= JavaElementLabels.getElementLabel((IJavaElement) e1, JavaElementLabels.ALL_DEFAULT);
			String name2= JavaElementLabels.getElementLabel((IJavaElement) e2, JavaElementLabels.ALL_DEFAULT);
			return getCollator().compare(name1, name2);
		}
	}
	
	
	private static final String TAG_HIDEFIELDS= "hidefields"; 
	private static final String TAG_HIDESTATIC= "hidestatic"; 
	private static final String TAG_HIDENONPUBLIC= "hidenonpublic"; 
	private static final String TAG_SHOWINHERITED= "showinherited";		 
	private static final String TAG_VERTICAL_SCROLL= "mv_vertical_scroll";		 
	
	private MethodsViewerFilterAction[] fFilterActions;
	private MethodsViewerFilter fFilter;