GCJ was great - I wrote a handset UI entirely in java for a startup in the early 2000's, basically android before android existed, using GCJ. I remember their

GCJ was great - I wrote a handset UI entirely in java for a startup in the early 2000's, basically android before android existed, using GCJ. I remember their native interface was somewhat more convenient to use than JNI. I wish we had GCJ resurrected, now that the java libraries are GPL'd.