public DERObject getConvertedValue(DERObjectIdentifier oid,
    String value) 
{
        if (value.length() != 0 && value.charAt(0) == '#')
        {
            try
            {
                return convertHexEncoded(value, 1);
            }
            catch (IOException e)
            {
                throw new RuntimeException("can't recode value for oid " + oid.getId(), e);
            }
        }
        else if (oid.equals(X509Name.EmailAddress))
        {
            return new DERIA5String(value);
        }
        else if (canBePrintable(value))
        {
            return new DERPrintableString(value);
        }
        else if (canBeUTF8(value))
        {
            return new DERUTF8String(value);
        }
        return new DERBMPString(value);
}

Apply default coversion for the given value depending on the oid and the character range of the value.