Java Remote Method Protocol
Synonyms
JRMP
(JRMP) A proprietary wire-level protocol designed by Sun Microsystems to transport Java RMI.
JRMP serves the same function as IIOP, but also supports object passing. Sun plans to offer IIOP as an alternative to JRMP.
Sun do not appear to use this term any longer, simply referring to the "RMI transport protocol".
http://java.sun.com/j2se/1.3.0/docs/guide/rmi/spec/rmi-protocol3.html.