*/
public static ChallengeAuthenticator createAuthenticator(
final Context context, final ChallengeScheme challengeScheme) {
MemoryRealm realm = new MemoryRealm();
realm.getUsers().add(new User("admin", "adminPW".toCharArray()));
realm.getUsers().add(new User("alice", "alicesSecret".toCharArray()));
realm.getUsers().add(new User("bob", "bobsSecret".toCharArray()));
context.setDefaultEnroler(realm.getEnroler());
context.setDefaultVerifier(realm.getVerifier());
return new ChallengeAuthenticator(context, challengeScheme, "");