tl;dr - How will the everyday developer cope with Java 8’s Language changes? Java 8 will ship with a powerful new abstraction - Lambda Expressions (aka Closures) and a completely retooled set of Collections libraries. In addition interfaces have changed through the addition of default and static methods.
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Lambdas: Myths and Mistakes - Presented by Richard Warburton
Richard Warburton is an empirical technologist and solver of deep-dive technical problems. Recently he has written a book on Java 8 Lambdas for O’Reilly. He’s worked as a developer in quite varied areas including Statistical Analytics, Static Analysis, Compilers and Networking.