Sun recently made some minor changes to the
SCJP 6 exam. Unfortunately, ranchers have been reporting that the new updated version isn't always the one being used at all the
testing centers around the world. So, if you happen to get the updated exam you won't have to worry about objective 4.4, but at this point it's hard to say whether your testing center will be using the updated exam or not.
For a little while longer I'd assume that you might get the older version of the exam and study all of the original SCJP 6 topics.
Also, Sun did an extensive review process to assure that the updated exam is just as hard to pass as the older version
hth,
Bert