It includes an entire Java Runtime Environment, or “private runtime.” Its name, that includes more than single tools rather than the standalone JRE application in addition to the other parts required for creating Java-based applications.

A software development environment used in a java programming language is called JDK (Java Development Kit). It falls under the second part of the package and includes the lambda project and JEP Process. The Java 8 Open JDK is one of the production-ready binary format distribution packages that includes the Java Runtime Environment (JRE) and Java Class Library. It provides the source code needed to give consumers a variety of distributions to run their apps on.It will produce all future JDK feature releases and will ship a feature release changed according to a rigid time-based methodology.

The JDK Project has mainly taken on responsibility for creating an open-source reference implementation of the Java SE Platform Edition.

Scripts for building are made available under the Apache License, Cygwin, FreeType, and other sources and binaries which are used in the project are distributed in accordance with their respective licenses.

Binaries for OpenJDK are distributed under the GNU GPL version with a classpath exception.

Mainly it comes under the second part, like the feature called lambda project with additionally JEP Process is included also production ready binary data distributions will be available on a general public license that denotes as GNU GPL along with linking exception included java class library. The java 8 open jdk is one of the production-ready binary format distribution packages that contain all the jre like java runtime environment. The following article provides an outline for Java 8 OpenJDK.

Open jdk download