Hi, Can someone explain what is the gcj in the GCC software? How is it different from Sun Java? Does gcj need a jvm? Does the jvm come from GNU? Can we mix and match java libraries from SUN and GNU? Does gcj have a good graphics library (e.g. swing)? Is gcj completely compliant with SUN's definition of java? All of these questions were generated when I started running "Native Eclipse" on Fedora Core 4. Thanks, Ernesto