By Weijun on Jun 11, 2007
Yesterday I download the Fedora 7 iso to install it in my VMWare. I haven't touched Fedora for a long time since I started using Ubuntu. The single reason (yes, the only one) is that I prefer a CD-size iso much much more than a DVD-size one, even if I have to install something from the Net after the installation.
The reason I install Fedora is because I want to try out the IcedTea project from RedHat (or, some RedHat guys), which provides a way to compile the OpenJDK sources with 100% free software, that is to say, no Sun JDK 6 for bootstrapping, no binary plugs to download for components still missing from the OpenJDK sources. This is so cool and great and it's the latest (probably the most promising) proof for me that doing JDK using the free and open source approach is the best thing we can do for the Java community.
After a simple hg clone and ./configure and make, it automatically downloads the OpenJDK source codes (sans the binary plugs), patches it, and starts the making process. When I look again into the Fedora console (thru VMWare thru rdesktop thru VNC), it's finished, with a line of warm words:
IcedTea is served: openjsk/control/build/linux-i586
The directory looks exactly like the JDK control build tree I'm familiar with. There's a gnu directory inside classes which includes an awt package and a security packge. That's just the components we cannot ship in the OpenJDK, right? Are they really provided to plug the holes?
First, I try the NotePad GUI demo, comes the error message "undefined symbol: setSunFontIDs". Not a nice output. Then I tried a tiny program on encryption using the Cipher class, this time the error message says the DES algorithm is missing. So the function is not actually plugged, only the build process is plugged.
Anyway, this is my first try on OpenJDK. At Sun's JavaOne OpenJDK booth I had tried to play with it but unfortunately the machine there has only the normal Solaris installed but not the Solaris Express Developer Edition, hence no compiler. The second time I almost decided to download the huge binary plugs but read Kelly's mail saying he's about to slim-ify the file, and I stopped again. I believe even with the sources and binaries from the OpenJDK site, the final built still cannot do GUI and Cipher. I try several commands of keytool and it works happily, so it's still a working version. That's enough now.