Corresponding Issues:
Why to Use Gnome Keyring?
It is quite convenient to store/retrieve keys from a protected, central space. Gnome keyring usually opens when you log in, and being accessible throughout your session.
But if you just would like to avoid to type the master password in the NetBeans fallback keyring implementation, then it worth it.
Workaround
Ubuntu 64bit
sudo apt install -y libgnome-keyring0
Followups
- When is implemented, you won't need to use this workaround.