To submit pull requests to mx, you need to sign the [Oracle Contributor
Agreement][1].

Project members with write access to the repository will determine
and assign an appropriate [Assignee][2] for the pull request. The
assignee will work with the pull request owner to address any issues
and then merge the pull request.

[1]: http://www.oracle.com/technetwork/community/oca-486395.html
[2]: https://help.github.com/articles/assigning-issues-and-pull-requests-to-other-github-users/