Unable to bypass useFirstPass module option in the custom login module

Issue

• When using picketbox useFirstPass, why does the last line of this method in org.jboss.security.auth.spi.AbstractServerLoginModule of picketbox jar return false?

  public boolean login() throws LoginException
   {
      PicketBoxLogger.LOGGER.traceBeginLogin();
      loginOk = false;
      // If useFirstPass is true, look for the shared password
      if( useFirstPass == true )
      {
         try
         {
            Object identity = sharedState.get("javax.security.auth.login.name");
            Object credential = sharedState.get("javax.security.auth.login.password");
            if( identity != null && credential != null )
            {
               loginOk = true;
               return true;
            }
            // Else, fall through and perform the login
         }
         catch(Exception e)
         {   // Dump the exception and continue
            PicketBoxLogger.LOGGER.debugFailedLogin(e);
         }
      }
      return false;
   }

• The result is always "false" on bypassing useFirstPass.