code: public void submitConfigurationForm() throws NoResponseException, XMPPErrorException, NotConnectedException,
                      InterruptedException {
          if (owners != null) {
              answerForm.setAnswer(MUC_ROOMCONFIG_ROOMOWNERS, JidUtil.toStringList(owners));
          }
          multiUserChat.sendConfigurationForm(answerForm);
      }
docs: Submit the configuration as {@link Form} to the room.
  
  @throws NoResponseException if there was no response from the room.
  @throws XMPPErrorException
  @throws NotConnectedException
  @throws InterruptedException