title: Key for two strings in a map?
body: <p>I need to create a map that has a key of two strings.</p>
  
  <p>for example lets say</p>
  
  <pre><code>key = Name &amp; Target
  value = Permission(boolean)
  </code></pre>
  
  <p>Do I need to create a special object or is there any build in tuple in Java/Google Collections or Commons Collections or Commons Lang?</p>