The Java ecosystem is bursting with tools and frameworks for just about every programming need. Here are seven open source Java projects you don't want to miss.

First revealed in August, Project Sumatra uses the features and libraries of Java 8’s Lambda Project as well as Oracle’s HotSpot for the Java Virtual Machine.

Project Valhalla, the Java language refactor, aims to correct these issues. Valhalla project lead Brian Goetz has said that Valhalla will “ heal the rift between primitives and objects.” ...

A new project from Oracle seeks to solve the nagging problem of slow Java startup times and other performance-related issues. Dubbed Project Leyden, the effort will address these pain points by ...