java - GWT: google plus Get -

i following sample code posted here gwt project: google plus sample demo

after implementing it, shows login window (if logged out). , once login, calls getme() method intended. however, code (within getme):

plus.people().get("me").to(new receiver<person>() {       @override       public void onsuccess(person person) {          println("hello " + person.getdisplayname());          getmyactivities();       }      }).fire(); 

does not work @ all.

i have google+ account. should technically return name. if not way fetch/get user information, there way can fetch user email, name , avatar?