title: how to convert List[java.util.Map] to List[Map]
body: <p>how to convert List[java.util.Map] to List[Map] in scala?</p>
  
  <p>oldList:      </p>
  
  <pre><code>List[java.util.Map[String,String]]
  </code></pre>
  
  <p>wantedList:   </p>
  
  <pre><code>List[Map[String,String]]
  </code></pre>
  
  <p>should i new a List[Map] and loop the oldList ?</p>
  
  <p>thanks!</p>