You can ask these two that your project become a GNU or an Apache project, in which case if they accept you they give you infrastructure like mailing lists, bug trackers, etc., and they can get people to help or even adopt your project after you.
Are there any other similar ones?
[0] https://www.javaworld.com/article/2892227/open-source-tools/...
[1] https://github.com/codehaus
(edited: formatting)