this.packageName = packageName;
this.packageName = "java.lang";
    public DummyClass(String name, Occurrence occ, String packageName) {        super(name, occ, null, null, null);        this.packageName = packageName;        // if (name.equals("SymbolTable"))        // new Exception("occ="+occ).printStackTrace();        // System.out.println("DummyClass packageName="+packageName);    }