Thank you, warjort!
Sorry? I'm not a profetional programmer and also I started modding just a few days ago, so I don't know every features of this framework now, and I even didn't know that there is such a method in Item class I can override.
By the way, does exist a full documentation for forge instead of docs.minecraftforge.net, that describes every classes, methods etc. No doubt it's a useful documentation to introduce you to the basics of working with the system, but in my opinion it is not enough, and I would like to have some full-complete documentation instead of trying at random, reading library packages for many hours and bombarding the forum with questions about every little thing.