Signals that login failed. Typically this is because an incorrect username, password, or other information was presented. Login modules that throw this exception may provide human-readable details through the getMessage( ) method.

Figure 19-26. javax.security.auth.login.FailedLoginException

public class FailedLoginException extends LoginException {
// Public Constructors
     public FailedLoginException( );  
     public FailedLoginException(String msg);  
}