CompilationUnit cu= createCompilationUnitNode(getMember());
CompilationUnit cu= CallHierarchy.getCompilationUnitNode(getMember(), true);
    protected Map findChildren(IProgressMonitor progressMonitor) {    	if (getMember().exists() && getMember().getElementType() == IJavaElement.METHOD) {        	CompilationUnit cu= createCompilationUnitNode(getMember());            if (progressMonitor != null) {                progressMonitor.worked(5);            }        	if (cu != null) {        		CalleeAnalyzerVisitor visitor = new CalleeAnalyzerVisitor((IMethod) getMember(),        				progressMonitor);                		cu.accept(visitor);        		return visitor.getCallees();        	}        }        return new HashMap(0);    }