title: Generic in Google Multimap
body: <p>Do you have a reason why <a href="http://docs.guava-libraries.googlecode.com/git/javadoc/com/google/common/collect/Multimap.html" rel="nofollow">MultiMap</a> is not completely generic?</p>
  
  <pre><code>containsEntry(Object key, Object value)
  containsKey(Object key)
  remove(Object key, Object value)
  removeAll(Object key) 
  </code></pre>