Bug 36456 Type heirarchy show final class icon only on double click [type hierarchy]
When opening a type heirarchy, the icons for the heirarchy do not show final classes (ie. the little 'F' in the icon). When the icon is double clicked to open the class, the icon changes.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java
public void selectionChanged(SelectionChangedEvent event) {
				doSelectionChanged(event);
			}
		};
		
		fLinkingEnabled= PreferenceConstants.getPreferenceStore().getBoolean(PreferenceConstants.LINK_TYPEHIERARCHY_TO_EDITOR);
	}
	/**
	 * Method doPropertyChange.
	 * @param event
	 */
	protected void doPropertyChange(PropertyChangeEvent event) {
		if (fMethodsViewer != null) {
			if (PreferenceConstants.APPEARANCE_MEMBER_SORT_ORDER.equals(event.getProperty())) {
				fMethodsViewer.refresh();
			}
		}
	}
	
		
	/**
	 * Adds the entry if new. Inserted at the beginning of the history entries list.
	 */		
	private void addHistoryEntry(IJavaElement entry) {
		if (fInputHistory.contains(entry)) {
			fInputHistory.remove(entry);
		}
		fInputHistory.add(0, entry);
		fHistoryDropDownAction.setEnabled(true);
	}