Added the following signature:

/**
* Retrieves all users with an alias within the given domain
*
* @param context Context object the user is associated to
* @param aliasDomain The domain of the alias
* @param auth Credentials for authenticating against server
* @return The users
* @throws RemoteException
* @throws StorageException
* @throws InvalidCredentialsException
* @throws NoSuchContextException
* @throws InvalidDataException
*/
public User[] listByAliasDomain(Context context, String aliasDomain, Credentials auth) throws RemoteException, StorageException, InvalidCredentialsException, NoSuchContextException, InvalidDataException;