title: Google Guava isNullOrEmpty for collections
body: <p>I see that Guava has isNullOrEmpty utility method for Strings</p>
  
  <pre><code>Strings.isNullOrEmpty(str)
  </code></pre>
  
  <p>Do we have anything similar for Lists? Something like</p>
  
  <pre><code>Lists.isNullOrEmpty(list)
  </code></pre>
  
  <p>which should be equivalent to</p>
  
  <pre><code>list == null || list.isEmpty()
  </code></pre>
  
  <p>Also, do we have anything similar for Arrays? Something like</p>
  
  <pre><code>Arrays.isNullOrEmpty(arr)
  </code></pre>
  
  <p>which should be equivalent to</p>
  
  <pre><code>arr == null || arr.length == 0
  </code></pre>