title: Inverse of Guava HashBiMap that has multiple keys point to one value
body: <p>I'm using a HashMap to associate multiple player objects with a single game object. </p>
  
  <p>I want to be able to get the players associated to a certain game.
  Therefore, I thought to use Guava's HashBiMap with players as keys, and games as values, and then take the inverse to find players associated to games. </p>
  
  <p>Does anyone know if this is possible? The inverse returns another HashBiMap and because of the duplicate keys, I would really need a multimap.</p>
  
  <p>Any thoughts?</p>