James Gosling, acknowledged as the father of Java, has left Oracle, apparently unable or unwilling to make the transition from Sun.

In a blog post Friday he said he resigned on April 2, the Friday before.

His only comment on why he left was more provocative than explanatory. “As to why I left,” he wrote, “it’s difficult to answer: Just about anything I could say that would be accurate and honest would do more harm than good. The hardest part is no longer being with all the great people I’ve had the privilege to work with over the years.”

James Gosling, Father of Java, speaking with SYS-CON.TV at JavaOne

Obviously he leaves unclear what impact the Oracle acquisition and his departure will have, if any, on Java, Oracle’s ostensible reason for buying Sun.

He said he had no place to go. “I don’t know what I’m going to do next, other than take some time off before I start job hunting.”

The former CTO of Sun’s Client Software Group is taking his blog with him. “It contains all of my old blog entries from Sun,” he said, “Sun’s blogging policy gave bloggers rights to their own works. The few more recent blog entries that I did at blogs.sun.com were written under somewhat more strict policies :-).”