On Nov 15, 2009, at 10:08 AM, Fei LI wrote: > Hi Kevan, > > This is a very good subject. I am an experienced Java/J2EE application > developer but only have the experience how to use a Web server, never develop > a Web server.
Understood. Implementing an EE server is certainly different. However, "user" experience can be very valuable in helping us to develop a more usable EE server. > > I can try. But I do not know how it can work out. So many things new to > learn. If you can find a supervisor for me, it would be awesome. He give me a > direction and I implement his idea. We can work together. It will be much > fast than I act alone. How do you think? Donald Woods is working on developing a plugin for OpenJPA 2.0. See https://svn.apache.org/repos/asf/geronimo/plugins/openjpa2/branches Geronimo currently uses OpenJPA 1.2.1 for EE 5 compliance. However, OpenJPA is working on their JPA 2.0 support for EE6. This plugin would enable JPA 2.0 support in a Geronimo server. So, it would be a good guide to identify what would need to be done to create an EclipseLink plugin. Have a look and feel free to ask questions. > > Another topic I am very interested is concurrency programming. I made > commercial one 8 years ago and people still use it, but I know it was not > good one after I read the book "Java Concurrency in practice". Now I believe > I can do much, much better on this topic. Cool. There's been Concurrency EE specs (Timer and Work Manager) floating around for a while. I don't recall the JSR numbers offhand. The spec(s) didn't make it into EE6. IIRC, the two specs may have been collapsed into 1 spec. Jarek, had done some implementation work on a draft version of the spec. You'll find the current implementation here -- http://svn.apache.org/repos/asf/geronimo/server/branches/2.2/plugins/concurrent/ --kevan
