rem: ACE_UNUSED_ARG (userex); TAO_TRY_ENV.print_exception ("User Exception");
add: ACE_UNUSED_ARG (sysex); TAO_TRY_ENV.print_exception ("System Exception");
context:   TAO_CATCH (CORBA::UserException, userex)    {      ACE_UNUSED_ARG (userex);      TAO_TRY_ENV.print_exception ("User Exception");      return -1;    }