How to retain dba_jobs after refresh in 9i

We have some jobs schuduled in Test instance (Oracle DB 9.2.0.7) using dbms_job package. TEST is refreshed from Prod everynight which means it overrides all the scheduled jobs.  

I want to prevent overwriting the jobs.

So i thought of exporting sys.job$ table and import post refresh. But i get errors while trying to export sys.job$ because of the below 3 columns

 CUR_SES_LABEL                                      MLSLABEL
 CLEARANCE_HI                                       MLSLABEL
 CLEARANCE_LO                                       MLSLABEL

 

When i search meatalink it says these columns are obosolete starting Oracle 8.

 

Any expert advise on this???