Multi-Tasking Virtual Machine (Project Barcelona)

Dalibor Topic dalibor.topic at oracle.com
Tue Nov 9 01:17:52 PST 2010


On 11/8/10 5:37 PM, Matt Ficken wrote:
> I am wondering:
> 1. Is there an active or usable project in this space that I'm not aware of?

I don't think so. I believe that JNode had some code, but it does not seem to be active. There was KaffeOS/JanosVM, but that's long been dormant, too.

> Would/could/should this be an openjdk sub-project? Or I should create a sourceforge project?

Since the code in MVM has been released under the JRL, and the JRL is not an open source license, an extension of it can't become an OpenJDK project.
I would guess that Sourceforge and other places are "open source only".

For details of what you can and can't do with code released under the JRL, please read the license, and it's associated FAQ on Java.net.

Since you mentioned JDK 5, I should also point out that the JDK 5 source code on Java.net is not being updated, maintained, has no security 
issues fixed, etc - JDK 5 reached EOSL a long time ago. While commercial support for Java SE 5.0 is available through the Java for 
Business program, it'd be a poor choice for the basis of an open source project, since JDK 5 on Java.net is not open source, either.

For a serious project, I'm afraid that you would need to think about starting from scratch with the existing OpenJDK code base. 
That's a lot more work, of course. But there is also a larger opportunity to learn.

cheers,
dalibor topic
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