MethodWrapper[] uncachedCalls= wrapper.getCalls();
MethodWrapper[] uncachedCalls= wrapper.getCalls(new NullProgressMonitor());
    public void testCalleesNoResults() throws Exception {        helper.createSimpleClasses();        IMethod method= helper.getMethod1();        Collection expectedMethods= new ArrayList();        MethodWrapper wrapper= CallHierarchy.getDefault().getCalleeRoot(method);        MethodWrapper[] uncachedCalls= wrapper.getCalls();        helper.assertCalls(expectedMethods, uncachedCalls);        MethodWrapper[] cachedCalls= wrapper.getCalls();        helper.assertCalls(expectedMethods, cachedCalls);    }