WebLogic Server 12.2.1.2 PSU Jan 2018 Patch 26860993 Conflicts with Previous PSU Oct 2017 Patch 26485996

(Doc ID 2357024.1)

Last updated on FEBRUARY 15, 2018

Applies to:

Oracle WebLogic Server - Version 12.2.1.2.0 to 12.2.1.2.0 [Release 12c]
Information in this document applies to any platform.

Symptoms

OPatch is the utility used to apply and rollback one-off patches and Patch Set Updates (PSU) to Oracle WebLogic Server (WLS) 12c.

Problem: Applied PSU Patch 26485996 for October 2017. Now attempting to apply PSU Patch 26860993 for January 2018 and receiving a conflict message from OPatch.

Since PSUs are intended to be cumulative, OPatch is incorrectly reporting a conflict:

$ opatch apply
Oracle Interim Patch Installer version 13.9.1.0.0
Oracle Home : /u00/Oracle/Middleware/Oracle_Home
Central Inventory : /u00/oraInventory
from : /u00/Oracle/Middleware/Oracle_Home/oraInst.loc
OPatch version : 13.9.1.0.0
OUI version : 13.9.1.0.0
Log file location :
/u00/Oracle/Middleware/Oracle_Home/cfgtoollogs/opatch/opatch2018-01-22_17-28-35PM_1.log

OPatch detects the Middleware Home as "/u00/Oracle/Middleware/Oracle_Home"
Verifying environment and performing prerequisite checks...

Conflicts/Supersets for each patch are:

Patch : 26860993

Bug Conflict with 26485996

 

The expected message is something like the following when applying Oct 2017 on top of July 2017:

Applied Patch 26485996
Patch 26485996 successfully applied.
Sub-set patch [25871788] has become inactive due to the application of a super-set patch [26485996].

Or when applying July 2017 on top of April 2017:

Applied Patch 25871788
Patch 25871788 successfully applied.
Sub-set patch [25388866] has become inactive due to the application of a super-set patch [25871788].



Additional Problem: If you have applied many PSUs before, the above Sub-set inactive actions build and January 2018 PSU will conflict with them ALL and becomes very cumbersome cascading issue to deal with.

Cause

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