Debuggin play app in Eclipse

1. Type in the play console play debug run
2. In eclipse, right click over your project and go to Debug As, and then click on Debug configurations..
3. In Debug configurations screen, go and click to Remote Java Application.
4. Put 9999 in the port input text (*).

(*): when you execute play debug run, look the print information for the port number. Probably the first message will be

Listening for transport dt_socket at address: 9999