title: How to remove an empty list from a list (Java)
body: <p>I have searched for this but it's in other languages like Python or R (?).
  I have lists inside a list and I would like to remove the empty list.
  For example:</p>
  
  <blockquote>
    <p>[ [abc,def], [ghi], [], [], [jkl, mno]]</p>
  </blockquote>
  
  <p>I would like:</p>
  
  <blockquote>
    <p>[ [abc,def], [ghi], [jkl, mno]]</p>
  </blockquote>
  
  <p>How do I remove empty list from a list?
  Thanks!</p>