This is a cleanroom implementation of the JCIP Annotations.
I used only the Javadoc of the JCIP annotations.
At no time did I look at the original Findbugs source code.
The JCIP Annotations are really useful, however they are released under the [Creative Commons Attribution License] (http://creativecommons.org/licenses/by/2.5), which is not recommended for licensing software and may therefore cause issues for some people.
Brian Goetz and Tim Peierls you guys are f*cking awesome, and I didn't realize how bad a Java developer I was until I saw that book. As soon as I saw the Yuk face listing on page 32, I knew I had to buy the book.
If there is one book every Java developer should have, JCIP is that book.