Bug 18588 [Workbench] Hierarchy - no progress monitor ?
Build 20020601 Open type java.lang.Object, select Object type name in editor, and hit F4. No progress is shown during hierarchy opening.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyLifeCycle.java
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);
			fHierarchy= null;
			fInputElement= null;
		}
	}