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
break;
			case IJavaElement.COMPILATION_UNIT:
				if (isWorkingCopyRemove((ICompilationUnit)element, delta.getKind()) || delta.getKind() == IJavaElementDelta.CHANGED && isPossibleStructuralChange(delta.getFlags())) {
					try {
						if (element.exists()) {
							IType[] types= ((ICompilationUnit) element).getAllTypes();
							for (int i= 0; i < types.length; i++) {
								processTypeDelta(types[i], changedTypes);
							}
						}
					} catch (JavaModelException e) {
						JavaPlugin.log(e);
					}
				} else {
					processChildrenDelta(delta, changedTypes);
				}
				break;
			case IJavaElement.CLASS_FILE:	
				if (delta.getKind() == IJavaElementDelta.CHANGED) {
					try {
						IType type= ((IClassFile) element).getType();
						processTypeDelta(type, changedTypes);
					} catch (JavaModelException e) {
						JavaPlugin.log(e);
					}
				} else {
					processChildrenDelta(delta, changedTypes);
				}
				break;				
		}