I'm not that familiar with Javanese kerises; wonder where the Javanese keris experts are.
I think this keris is a East Javanese keris. The blade is probably an older blade, with some finesse to it. The 2 groves (sogokan depan, sogokan belakang) at the base of the blade is quite nicely executed and not overly stiff. The blade, as you can see, is not completely straight, but has a slight arc to it. Pamor is from the 'wos utah' (scattered rice) family. The sheath and hilt are probably made from sandal wood. The sheath form is called sandang walikat. Quite nicely done too. Noticed that the mendak (the hilt cup) has green enamel inlay. That is quite rare.
If this is your friend's first keris, it is a very good start. Graceful piece overall.