title: Convert java.math.BigDecimal to scala.math.BigDecimal?
body: <p>I am trying to convert a java.math.BigDecimal to a scala.math.BigDecimal, and I can't find a method to do it.</p>
  
  <p>I've tried to convert a List[BigDecimal] in the following way,</p>
  
  <pre><code>payments.map(_.asInstanceOf[math.BigDecimal])
  </code></pre>
  
  <p>which gives the error</p>
  
  <pre><code>java.math.BigDecimal cannot be cast to scala.math.BigDecimal
  </code></pre>