Oracle have posted the talk that Brian Goetz (one of my favourite technical experts) gave at the JVM Language Summit on 30 July 2012 on implementing lambda expressions in Java. It’s shorter than a classic talk at only 40 mins long. Lambda expressions are due to be released in Java 8 and will be the flagship feature of that release and will also be, without a shadow of a doubt, one of the most important features of all time.
Not only will they make the language more powerful in its expression but with any luck the VM will also be able to introspect and detect latent areas of parallelism and parallelise the execution of those lambda operations. Numerous satellite projects will also leverage the use of lambda expressions in their endeavours – an example being the recent proposal to add GPU support into Java.