Yes, the implementation expects the message header, but receives the end of stream because it has sent a one way message. The patch has been just posted to the patch list. Seems registering something now. 2006-04-08 Audrius Meskauskas <AudriusA@xxxxxxxxxxxxxxxxxx> * gnu/CORBA/gnuRequest.java (p_invoke, submit): Do not try to read response for the one way messages.