3.3.2. Specify an Intrinsic Group

class User {
 
   ...
   String office;
   ...
 
   public int hashCode()) {
      // Defines the hash for the key, normally used to determine location
      ...
   }
 
   // Override the location by specifying a group, all keys in the same
   // group end up with the same owner
   @Group
   String getOffice() {
      return office;
   }
 
}