core/play/src/main/java/play/mvc/Call.java
public Call withFragment(String fragment) {
    return new play.api.mvc.Call(method(), url(), fragment);
  }
public Call withFragment(String fragment) {
    return new play.api.mvc.Call(method(), url(), fragment);
  }
Returns a new Call with the given fragment.

@param fragment the URL fragment
@return a copy of this call that contains the fragment