On page XIV of "Java in a Nutshell 6th ed" we can read:
The examples in this book are available online and can be downloaded from the home page for the book at http://www.oreilly.com/catalog/javanut6. You may also want to visit this site for any important notes or errata that have been published there.
Where is that "home page" ???
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Sorry for your frustration. I'm going to contact an editor on this title to see about getting the example code posted on the page on oreilly.com where you can purchase the book. Once I have further information I will contact you.