Lists with Java Annotations

public class myAnnotation_Validator implements ConstraintValidator<myAnnotation, Collection> {
     private String[] names;

     @Override
     public void initialize(myAnnotation a) {
        //get values which are defined in the annotation
        names = myAnnotation.namen();
     } 

     @Override
     public boolean isValid(Collection objectToValidate, ConstraintValidatorContext cvc) {

        if(objectToValidate == null) return true; // use the @NotNull annotation for null checks 

        for(Object o : objectToValidate) {
           //check if value is valid
        }

        return false; 
    } 
}

In the initialize method you can get the values, which are defined in the annotation. The isValid method is used to validate the object (objectToValidate -> your list object).

For more information on how to write a custom validator see http://docs.jboss.org/hibernate/validator/4.3/reference/en-US/html/validator-customconstraints.html#validator-customconstraints-validator

Also the Hibernate-Validator implementation is a good reference. https://github.com/hibernate/hibernate-validator/tree/master/engine/src/main/java/org/hibernate/validator/internal/constraintvalidators

I hope this answer helps you.