import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.persistence.AttributeConverter;
import javax.persistence.Converter;

@Converter(autoApply = true)
public class InternetAddressJPAConverter implements AttributeConverter<InternetAddress, String> {

    @Override
    public String convertToDatabaseColumn(InternetAddress value) {
        return value != null ? value.toString() : null;
    }

    @Override
    public InternetAddress convertToEntityAttribute(String value) {
        if (value != null) {
            try {
                return new InternetAddress(value);
            }
            catch (AddressException e) {
                throw new RuntimeException(e);
            }
        }
        else {
            return null;
        }
    }
}