http://www.baseballamerica.com/blog/prospects/?p=10522

Any player who was not on a 40-man roster on Nov. 7 qualified for free agency if he had accumulated at least six years of service time (minors and majors inclusive) while still bound by his first uniform player contract. That contract is broken if the player is released or granted free agency by other means before he logs six years.

San Francisco Giants (22)
RHP: Rafael Cova (AA), Eric Hacker (AAA), Matt Kinney (AAA), Mike MacDonald (AA), Osiris Matos (AAA), Scott Nestor (Lo A), Tony Pena Jr. (AAA), Ronnie Ray (AA)
LHP: Geno Espineli (AAA), Horacio Ramirez (AAA), Andy Sisco (AA), Jake Stevens (AA), Dontrelle Willis (AAA)
C: Steve Holm (AAA), Guillermo Rodriguez+ (AAA)
1B: Michael Sandoval+ (Hi A)
2B: Derin McMains+ (AAA)
3B: Jesus Guzman (AAA)
SS: Juan Ciriaco (AA), Sharlon Schoop (AA)
OF: Joe Borchard (AAA), Clay Timpner (AA)

Hacker has already signed elsewhere.