R12.1 Upgrade Patch Error

FAILED: file jai_ren_tab.sql on worker  

Patch : 6678700

Errors:

Patch Log:

There are now 131110 jobs remaining (current phase=A2):

    7 running, 0 ready to run and 131103 waiting.

ATTENTION: All workers either have failed or are waiting:

           FAILED: file jai_ren_tab.sql on worker  1.

ATTENTION: Please fix the above failed worker(s) so the manager can continue.

Worker Log

AD Worker error:

The following ORACLE error:

ORA­00955: name is already used by an existing object

occurred while executing the SQL statement:

RENAME JA_IN_RCV_JOURNALS_B to JAI_RCV_JOURNAL_ENTRIES

Error occurred in file

/d01/bkptest/apps/apps_st/appl/ja/12.0.0/patch/115/sql/jai_ren_tab.sql

with arguments '&un_ja'.

Time when worker failed: Mon Oct 01 2012 13:17:08

"adwork001.log" 12520L, 320372C

Solution:

1.Take the backup of jai_rcv_journal_entries

2.Drop the table ja.jai_rcv_journal_entries

3.restart the failed worker