Kohsuke Kawaguchi is a senior staff engineer at Sun Microsystems. He has been working on web services and XML, in particular RELAX NG, W3C XML Schema, JAXB, JAX-WS, and JAXP.<br /> He's involved in GlassFish v3, and in his spare time hacks on even more projects like Hudson, com4j, args4j, and stapler.