Class Design Java 
TechEmpower
MARCH 27, 2013
The following post is a comprehensive summary of the developer-facing changes coming in Java 8. At the time of this writing, Java 8 development is still very much in progress. It had the best support for the Java 8 language features at the time I went looking. Language features and APIs may still change.
TechEmpower
JULY 5, 2016
The check can be made in one central location, no changes to our view classes or client-side code are required, and it only throws exceptions in the specific cases where our default behavior is wrong. Theoretically we can send it from a Java server to a JavaScript client via JSON and both sides see exactly the same number.
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