title: Javadoc of ArrayUtils.isNotEmpty is faulty?
body: <p>The javadoc of <code>ArrayUtils.isNotEmpty()</code> in Apache Commons Lang seems to be wrong. Or, at least, misleading.  It says </p>
  
  <blockquote>
    <p>Returns:
      true if the array is not empty or not null</p>
  </blockquote>
  
  <p>In my understanding, an empty array is not <code>null</code>. So, according to the above definition, <code>isNotEmpty()</code> should return <code>true</code> for an empty array, which is counterintuitive.</p>
  
  <p>Wouldn't </p>
  
  <blockquote>
    <p>Returns:
      true if the array is not null and not empty</p>
  </blockquote>
  
  <p>be more correct?</p>