title: Deep clone utility recommendation
body: <p>Is there any utility for deep cloning for java collections:</p>
  
  <ul>
  <li>Arrays</li>
  <li>Lists</li>
  <li>Maps</li>
  </ul>
  
  <p>NOTE: prefer some solution without usage of serialization, but with use of Object.clone() method. I can be sure that my custom object will implement clone() method and will use only java-standard classes that are cloneable...</p>