chapter18 of the documentation is pretty clear that rollbase is portable across OS and application containers, but then suggests using sun-java when typically on Linux such as Ubuntu and CentOS that openJDK is the installed default, and indeed sun-java is not even in the 3rd part repos. Is there a word on whether openJDK-1.6.0 is supported with tomcat6 on Linux such as CentOS 6.x and ubuntu?
Rollbase works successfully on Ubuntu. I never tried on OpenJDK but I think it should work fine.