This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
HP and IBM maintain their own Java VMs for HP-UX and AIX, Sun's JVM isn't available for these operating systems as far as I know. Unfortunately that means that the most recent version of Java for those OSes isn't up-to-date with Sun's newest Java version.