private boolean validatePassword(String username, String password) throws UserUnknownException{

		UserAuth user = ds.find(UserAuth.class, "username", username).get();
		
		if(user==null){
			throw new UserUnknownException();
		}
		
		if(user.getPassword().equals(password)){
			//Add as true user			
			usuarios.add(user);
			return true;
		}else{
			return false;
		}
		
		
		/*
		if(!senhas.containsKey(username)){
			throw new UserUnknownException();
		}
		
		return password.equals(senhas.get(username).getPassword());
		*/

	}