OpenJDK explorations

Found some info regarding the OpenJDK JVM interface:

http://fuseyism.com/openjdk/cvmi/java2vm.xhtml

I also once started to install Linux Ubuntu on my VMWare, and tried to build OpenJDK 8, to see what was needed to incorporate it into Jamiga. I found some instructions here on hg.openjdk.java.net/jdk8

Still here, still

Hi all,
I've been a bit busy lately, but I finally have some time to continue development on jamiga. I'm continuing on networking, and solving issues I find surrounding that. Right now that means stuff with the DirectByteBuffer implementation. I'm hoping to have something screenshottable soon (don't get to excited, it'll only be console stuff, no GUI).

Other than that, I'm still loooking at OpenJDK, and JamVM to some extent. With Java 7 being released, Java 8 due in 2012, and GNU Classpath hopelessly untouched since 2009 with barely Java 5 functionalty, openJDK, really seems what everyone is aiming for. Thus, the network parts tries to adhere to the OpenJDK style of implementing the class library, making the network parts relatively easy converted to another VM using OpenJDK, such as JamVM.

Still here

Since a month, back from vacation. Although I haven't done much with JAmiga lately, the project is not abonded. Last I worked on was getting network support, and that is coming along nicely. I also attended a conference (Omegapoint Competence Conference 2011 (opkoko)) that featured a run down of different garbage collecting algorithms, which really sparked my JAmiga coding spirit.

What is needed at the moment, is a more detailed plan. I will add more detailed, better planned issues to jamiga2-googlcode site, that will hopefully make the burden lesser when I do get those sparse coding sessions.

I will also try to update the blog more frequently, of any sort of progress I make.

Vacation

Ok, although there haven't been much visible activity from me lately, I still have to brag about my upcoming vacation. I'll be away from keyboard the coming two weeks.

As usual, don't take any inactivity for real inacticity or abandonment of Jamiga. Its on-going. And the other team members are here (I think).

The JAmiga team

I'm happy to announce that the JAmiga team has got two new members (which makes it relevant to even talk of a team): Thore Sittly is working on MorphOS, and Christoffer is helping out with the OS3-version.

Lately Thore added JAR-files support for MorphOS, and I'm in the process of making sure it works with OS4 aswell. Thore is also looking into adding MUI support for the AWT/spring stuff. Other new features are network support, which I am working on, and of course the ever on-going "getting everything to really work".

All in all, JAmiga might see a new release in a not to distant future -- still a beta though -- for three of our targeted platforms. We still need help from Aros-people. If you can compile stuff for Aros, please do help us (I neither have time, nor patience to install Aros at the moment). I assume our efforts in making it compile for OS3 will help us compile it for Aros aswell.

Note to self: performance test

Found a comparsion between different Java VM:s:
http://adweb.desy.de/mcs/Mst_content/TINEJavaServer_p.pdf

Should probably create a few Java-tests to test JAmiga:s capabilities. To get comparative results, I should probably install a Linux on my AmigaOne, and test JamVM and the others.

OpenJDK

I have been looking at JDK7 and OpenJDK, and trying to use that instead of the GNU Classpath. The GNU CP will, as I have understood it, not be much further developed. And I believe the only way to go is JDK7, and not stand still at JDk5.

Looking at the CVMI-interface, I found a blog covering the difference between GNU CP and OpenJDK.