title: What is better for the performance CollectionUtils.isEmpty() or collection.isEmpty()
body: <p>What is better for the performance if you already know that the collection isn’t null.
  Using <code>!collection.isEmpty()</code> or <code>CollectionUtils.isNotEmpty(collection)</code> from the Apache Commons lib?</p>
  
  <p>Or isn’t there any performance difference?</p>