jdk folder structure, sample folder

I'm looking for a way to cut down the size of my JDK (Java 6). In
Oracle's explanation of the file structure (http://docs.oracle.com/
javase/6/docs/technotes/tools/windows/jdkfiles.html#additional), it
mentions some additional files and directories that presumably can be
removed.

Now, there is an additional sample folder that is not explained. From
its name, I guess I can remove it, too. Right? Please point me to an
official page explaining this folder. Searching the web did not reveal
one.

Thanks, Ulrich
.