Ken Arnold is one of the original architects of the Jini platform, and is lead engineer of Sun's JavaSpaces technology. He is co-author, with James Gosling, of " The Java Programming Language, Second Edition ". Bryan O'Sullivan, while at Sun Microsystems, Inc, developed the Jini Discovery and Join Protocol. Robert-W Scheifler is a Senior Staff Engineer and one of the original architects of Jini technology with Sun Microsystems, Inc, where he has been responsible for the design and implementation of the lookup service and the associated discovery protocol and attribute schema. Jim Waldo is a Distinguished Engineer with Sun Microsystems, Inc, where he has been the lead architect for the Jini project since its inception. Ann Wollrath is a Senior Staff Engineer with Sun Microsystems, Inc., where she is the architect of the Java RMI System and one of the original architects of the Jini technology.