Causes classname cannot be nil exception

gistfile1.java

	public static ArrayList<ParseObject> getFamilyMembers(){
		ParseUser currentUser = ParseUser.getCurrentUser();
		try {
			currentUser.fetch();
		}
		catch(com.parse.ParseException e){
			e.printStackTrace();
		}
		ParseRelation familiesRelation = currentUser.getRelation("families");
		ParseQuery familiesQuery = familiesRelation.getQuery();
		ArrayList<ParseObject> familyMembers = new ArrayList();
		try {
			List<ParseObject> families = familiesQuery.find();
			for(ParseObject family : families){
				ParseQuery usersQuery = family.getRelation("users").getQuery();
				List<ParseObject> users = usersQuery.find();
				for(ParseObject user : users){
					familyMembers.add(user);
				}
			}
		}
		catch(com.parse.ParseException e){
			e.printStackTrace();
		}
		Log.d("FammerTest", "**************************** number of users: " + new Integer(familyMembers.size()).toString());
		return familyMembers;	
	}

Java huh. I'm sorry.