GDG DevFest Tokyo 2016 ライブラリ対談2016 秋の陣 by Shibuya.apk 言語系 Kotlin: The Kotlin Programming Language http://kotlinlang.org/ ThreeTenABP: An adaptation of the JSR-310 backport for Android. retrolambda: Backport of Java 8's lambda expressions to Java 7, 6 and 5 Lightweight-Stream-API: Stream API from Java 8 rewritten on iterators for Java 7 and below Project Lombok: android instructions AndroidAnnotati