This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
You can take the Java 7 upgrade exam which will get you to be OCPJP 7 certified. You can't take the full OCPJP 7 exam without the OCAJP 7 pre-req. In other words, the upgrade exam is different than the other path.