title: imported package is not available in Play! framework template
body: <p>I have a Play 2.0 template with the following first lines:</p>
  
  <pre><code>@(item: Option[Item] = None,
      violations: java.util.Set[ConstraintViolation[Item]] = new util.HashSet[ConstraintViolation[Item]]())
  
  @import java.util
  @import javax.validation.ConstraintViolation
  </code></pre>
  
  <p>But the <code>ConstraintViolation</code> cannot be found and I get the error:</p>
  
  <pre><code>not found: type ConstraintViolation 
  </code></pre>
  
  <p>The bean validation API itself is available in the application since I can use it in a controller. What can I do to import it in my template?</p>