BTW, I typically use the procedure documented here:
http://wiki.centos.org/HowTos/JavaOnCentOS
And build RPM's from jpackage using the Sun 1.6.0 JDK. Works pretty well except jpackage is often times slow to release a new nosrc RPM when Sun releases a new version of the JDK.
For example, the latest jpackage nosrc RPM is for update 4 which you can no longer download from Sun as update 5 is now current.
I did find update 4 here:
http://cleaver.demonolatria.org/ftp/progs/jdk-6u4-linux-i586.bin
Ray