List<ConstraintViolation> validate(Object validatedObject)
List<ConstraintViolation> validate(Object validatedObject, String... profiles)

def validate(toValidate: AnyRef) = {
  val validator = createValidator
  validator.validate(toValidate)
}

error: ambiguous reference to overloaded definition,
[INFO] both method validate in class Validator of type (x$1: Any,x$2: <repeated...>[java.lang.String])java.util.List[net.sf.oval.ConstraintViolation]
[INFO] and  method validate in class Validator of type (x$1: Any)java.util.List[net.sf.oval.ConstraintViolation]
[INFO] match argument types (AnyRef)
[INFO]       this.validator.validate(toValidate)

val ambiguous = validator.getClass.getMethods.filter(_.getName == "validate")
val wanted = ambiguous.find(_.getParameterTypes.length == 1).get
wanted.invoke(validator, toValidate).asInstanceOf[java.util.List[ConstraintViolation]]