This process is subject to change. Changes MUST be approved by Project Lead and Technical Lead. Changes considering development in OpenJDK MUST be publicly discussed on the jdk8u-dev mailing list prior to approval to allow for public feedback. The Project Lead is Sean Coffeyis Andrew Haley
The process we use is
All changes that are not specific to JDK 8 Update MUST go into the JDK Project first. As a special exception, a change MAY go into JDK 8 Update if it is at the same time also proposed for inclusion into the JDK Project.
The jdk8u/jdk8u-dev, the always open mainline JDK 8 Update forest, is maintained by the Project Lead. Exceptions to that are e.g. specific release repositories, where the Project Lead MAY delegate that authority.