MColumn.getSQLDDL() with DEFAULT NULL

Hi Developers,

While I was trying to import localization Colombia, and I've got an error with Oracle 11g on creating columns

===========> DB.executeUpdate: ALTER TABLE LCO_ISIC ADD AD_Org_ID NUMBER(10) DEFAULT  NULL  NOT NULL [SvrProcess_2b4a73c9-411c-4723-bdca-fd24cfd291bf] [11]
java.sql.SQLException: ORA-00600: internal error code, arguments: [kkdlSetColDTypeDfltProps0], [], [], [], [], [], [], []
; State=60000; ErrorCode=600

the problems seems to be the DEFAULT NULL, I tryed to issue the same command on sqldeveloper and got the same error, removing the DEFAULT NULL solved.

I propose to change MColumn.getSQLDDL() from

        //    Default
        if (getDefaultValue() != null && getDefaultValue().length() > 0)
        {
                   ....
to

        //    Default
        if (getDefaultValue() != null && getDefaultValue().length() > 0 && getDefaultValue().indexOf('@') == -1)
        {
                   ....

and also remove the corresponding tests on defaultValue a few lines above because they are redundant:

            String defaultValue = getDefaultValue();
            if (defaultValue != null
                && defaultValue.length() > 0
                && defaultValue.indexOf('@') == -1)        //    no variables
            {

What do you think?

Angelo