After upgrading Applications Manager, all Jobs go into LAUNCH_ERROR with an "ORA-01722: invalid number" error message

Document ID : KB000087882
Last Modified Date : 14/04/2018
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Issue:
Error Message :
java.sql.SQLSyntaxErrorException: ORA-01722: invalid number

After upgrading to Applications Manager version 9.0.1 HF1, all Jobs abort with a LAUNCH ERROR status. The above error is seen in the AgentService<timestamp>.log at time of Job abort.

Investigation
This issue has been seen in only 1 case. Automic Support was unable to reproduce the behavior but rooted to be Oracle related, specifically in Oracle version 12.2.0.2.0.
Environment:
OS Version: N/A
Cause:
Root Cause: Oracle related(unconfirmed).
Resolution:
N/A

Fix Status: No Fix

Fix Version(s):
N/A
Additional Information:
Workaround :
Change the line DirectDBConnection=Y to DirectDBConnection=N in the awenv.ini file, and restart the processes.