JPA Joda DateTime converter

DateTimeConverter.java

public class DateTimeConverter implements AttributeConverter<DateTime, Date> {
    @Override
    public Date convertToDatabaseColumn(DateTime attribute) {
        return attribute == null ? null: new Date(attribute
                .withZone(DateTimeZone.UTC)
                .withZoneRetainFields(DateTimeZone.getDefault())
                .getMillis());
    }

    @Override
    public DateTime convertToEntityAttribute(Date dbData) {
        return dbData == null ? null
                : new DateTime(dbData.getTime())
                        .withZoneRetainFields(DateTimeZone.UTC)
                        .withZone(DateTimeZone.getDefault());
    }
}