JTOpen Tools DB2 SQL returning file not found after upgrading to V7R3

I have a Java program which uses java persistence APIs to run SQL queries. After upgrading i5 OS to V7R3 this program started throwing an exception:

Internal Exception: com.ibm.as400.access.AS400JDBCSQLSyntaxErrorException: [SQL0204] XFRCTL00 in SYSMONDB$ type *FILE not found.
Error Code: -204
Call: SELECT XFRCTRLKEY, DESCRIPTION, FILEREGEX, IFSPATH, MONITORXFR, UPDTMSP, XFRID, XFRSENDRCV, XFRTYPE FROM XFRCTL00
Query: ReadAllQuery(name="XfrctlSelection.selectAll" referenceClass=XfrctlSelection sql="SELECT XFRCTRLKEY, DESCRIPTION, FILEREGEX, IFSPATH, MONITORXFR, UPDTMSP, XFRID, XFRSENDRCV, XFRTYPE FROM XFRCTL00")

The only thing which changed was the level of the System I operating system.

The table XFRCTL00 does exist in library SYSMONDB$. The table is not damaged or corrupt. *PUBLIC has full rights so I don't think it is a authorities problem.

I updated JTTools to 9.4 (from 8.4) but that didn't help.

Has anyone seen this or a similar problem after upgrading to V7R3.

The information contained in this message is proprietary and/or confidential. If you are not the intended recipient, please: (i) delete the message and all copies; (ii) do not disclose, distribute or use the message in any manner; and (iii) notify the sender immediately. In addition, please be aware that any message addressed to our domain is subject to archiving and review by persons other than the intended recipient. Thank you.