Email validation with RegExp (JSF validator + Seam component)

EmailValidator.java

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.validator.Validator;
import javax.faces.validator.ValidatorException;

import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.intercept.BypassInterceptors;

@Name("myEmailValidator")
@BypassInterceptors
@org.jboss.seam.annotations.faces.Validator
public class EmailValidator implements Validator {
	private static final String EMAIL_REGEX = "^[_A-Za-z0-9-]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9-]+)*(\\.[A-Za-z]{2,})$";

	/**
	 * <a href="http://www.mkyong.com/regular-expressions/how-to-validate-email
	 * -address-with-regular-expression/">Source</a> <br/>
	 * Modification : autorisation des "-" dans le nom de domaine <br/>
	 * Exemple valide : jean-michel-75440.exemple42@email-pro.mon-entreprise.com
	 */
	public void validate(FacesContext context, UIComponent component,
			Object value) throws ValidatorException {

		/* Create the correct mask */
		Pattern mask = Pattern.compile(EMAIL_REGEX);

		/* Get the string value of the current field */
		String emailField = (String) value;

		/* Check to see if the value is a valid email */
		Matcher matcher = mask.matcher(emailField);

		if (!matcher.matches()) {
			FacesMessage message = new FacesMessage();
			message.setSummary("Email invalide");
			message.setSeverity(FacesMessage.SEVERITY_ERROR);
			throw new ValidatorException(message);
		}
	}

}