OpenJDK

open-source JDK, an implementation of the Java Platform, Standard Edition specification defined in the Java Community Process.

https://openjdk.dev.java.net/

Today this project contains two significant components of the JDK:

• The HotSpot Virtual Machine
• The Java programming-language compiler (javac)

目前 OpenJDK 采取 GPL 2 许可协议。https://openjdk.dev.java.net/source/browse/openjdk/hotspot/trunk/LICENSE?rev=11&view=markup

获取源代码

• https://openjdk.dev.java.net/source/browse/openjdk/
• https://phoneme.dev.java.net/source/browse/phoneme/
• https://glassfish.dev.java.net/public/downloadsindex.html