Create Java Logger adds logger code to all Java
files recursively from a given directory. If a
directory is not defined, the current directory is
used. By default, calls to System.out.println are
reaplaced with calls to logger.fine, but you can
change the logging level by using the command code
options or choose not to do such replacement at
all. It is a good idea to create a backup of your
code before running the script.