Bug 16897 No busy indicator while populating type hierarchy
Build: Freeze 1 In a self-hosting workspace, select the type IAdaptable in an editor and hit F4 to populate the type hiearchy. Since this interface has many sub-types, this takes several seconds to populate. There should be a busy indicator while this is happening.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyLifeCycle.java
private boolean fReconciled;
	
	private List fChangeListeners;
	
	public TypeHierarchyLifeCycle() {
		this(false);
	}	
	
	public TypeHierarchyLifeCycle(boolean isSuperTypesOnly) {
		fHierarchy= null;
		fInputElement= null;
		fIsSuperTypesOnly= isSuperTypesOnly;
		fChangeListeners= new ArrayList(2);
		fReconciled= false;
	}
	
	public ITypeHierarchy getHierarchy() {
		return fHierarchy;
	}
	
	public IJavaElement getInputElement() {
		return fInputElement;
	}
	
	
	public void freeHierarchy() {
		if (fHierarchy != null) {
			fHierarchy.removeTypeHierarchyChangedListener(this);
			JavaCore.removeElementChangedListener(this);