Good documentation/book about Future [closed]

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Can anyone suggest a good documentation/tutorial/book about the Future interface in Java?

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The bible is Java Concurrency in Practice.

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The javadoc itself of the concurrent package is pretty darn good. I think it's one of the most beautifully javadoced code in JDK.

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Concurrent Programming in Java(TM): Design Principles and Patterns (2nd Edition) by Doug Lea. This is the book by the author of java.util.concurrent package. Java Concurrency in Practice is a very good book, too.