By user702295-Oracle on Feb 12, 2014
We have a MOS note for upgrade problems when upgrading to 12.2.2.
Oracle Demantra Platform Upgrade to 12.2.2 Known Issues Worksheet Performance Calendar Excel ORA-0179 ORA-06512 ORA-31003 java.lang.NullPointerException (Doc ID 1602288.1)
- DO NOT upgrade from 7.3.x, 12.2.0 or 12.2.1 to 12.2.2.
- DO NOT run the 12.2.2 upgrade twice.
Currently there is a bug in the 12.2.2 upgrade that can
cause serious corruption in those cases. Customers should instead
upgrade from 7.3.x, 12.2.0 or 12.2.1 to 12.2.3.
I do not know when/if we will fix this issue. Right now 12.2.2 cannot be downloaded.
Note: that there is already a section in that MOS note detailing a work-around for a different problem when upgrading from 12.2.1 to 12.2.2. The existence of that work-around might imply that it is ok to do the upgrade -- but it is NOT ok to do that upgrade