title: Google Calendar API: java.lang.ClassNotFoundException: com.google.common.collect.Maps
body: <p>I am creating a fairly simple Java client that connects to my account and gets all the events. Here I am getting an exception saying :</p>
  
  <pre>
  java.lang.ClassNotFoundException: com.google.common.collect.Maps</pre>
  
  <p>Could anyone tell me which JAR am I missing and moreover where to download it from?</p>