There are many ways to get involved with Apache NetBeans.
Talk with Other Users and NetBeans Committers
Ask and answer user questions on one of the mailing lists.
Ask and answer questions on StackOverflow.
Join the development mailing list at dev@ (info)
Join NetBeans on Slack. Go to the signup page, enter your e-mail address, and join in discussions going on there about/around NetBeans. Note that these are informal discussions and that important discussions and decisions around Apache NetBeans must happen on the dev@ mailing list. Slack and other non-official channels are fine for coffee machine style discussions, but nothing more.
Give Feedback and Contribute
Report bugs: howto
In-order to help first time contributors, check and maintain the following labels:
Introduce yourself. If you haven't done so yet and if you suspect others on the project might not know you yet, please send an introductory e-mail to the dev@ mailing list. Also, read about everyone else on the Who's Who. To be able to edit that page, you will need a Confluence user/password, which is not the same thing as your Apache ID. Once you have a user account on Confluence, please send a mail to dev@ to ask for editing permissions for making changes to the Wiki. Once you have been given editing permissions, you're able to update the "Who's Who" page with your info.
Remain up to date. The dev@ mailing list is where all announcements and discussions take place. Highlights and summaries are found here on the Wiki.