joel-costigliola/assertj-core-java8 — pull request #9 by lpandzic (2014-08-01 22:06:32+00:00)
Title: Fixes #3 extracting with java method reference

Initial implementation that exposes extracting with java.util.Function and provides type safe way of extracting up to 5 properties. As there is currently no documentation, for functionality focus on IterableAssert_extracting_Test.
One point of interest is the ActualRetriever interface that provides a dirty hack for providing new extract methods.