title: Add elements of a list to the same list in java
body: <p>Is it possible to the following? If yes, does it have any drawbacks or is there a better way to do this?</p>
  
  <pre><code>List&lt;Integer&gt; myList = new ArrayList&lt;&gt;();
  myList.add(2);
  myList.add(3);
  
  // then add all the elements again
  myList.add(myList);
  </code></pre>