docs: @Nonnull
    @Nonempty
    public String handle ()
    {
      return InternalErrorHandler.handleInternalError (m_bSendEmail,
                                                       m_bSaveAsXML,
                                                       m_aUIErrorHandler,
                                                       m_aThrowable,
                                                       m_aRequestScope,
                                                       m_aCustomData,
                                                       m_aEmailAttachments,
                                                       m_aDisplayLocale,
                                                       m_bInvokeCustomExceptionHandler,
                                                       m_bAddClassPath,
                                                       m_nDuplicateEliminiationCounter);
    }