ADOP phase=prepare is failing at adconfig on the adgenjky.sh script while upgrade

Issue:

While trying to apply E-Business Suite 12.2.3 Release Update Pack, the ADOP phase=prepare is failing at adconfig and adconfig is failing at adgenjky.sh script.

[SETUP PHASE]
 AutoConfig could not successfully execute the following scripts:
Directory: /data01/apps/fs2/inst/apps/TEST/admin/install
adgenjky.sh INSTE8_SETUP 1

AutoConfig is exiting with status 1

Fix:

1. Please run the following from the SQL as apps user and it will return the passwords we will use to run the command manually:

set serveroutput on
declare
spass varchar2(30);
kpass varchar2(30);
begin
ad_jar.get_jripasswords(spass, kpass);
dbms_output.put_line(spass);
dbms_output.put_line(kpass);
end;
/

This will output the passwords in the following order:

store password (spass)
key password (kpass)

2. Run the command as:

# cd $INST_TOP/admin/install
# adjkey -export -alias -keystore -file

3. If that works, then retry adop prepare.

4. If that fails, one can try renaming or moving adkeystore.dat adsign.txt appltop.cer out of the /EBSapps/appl/ad/admin from the PATCH filesystem, source the env file and recreate the certificate by running adjkey -initialize from the command line.

Ref:(Doc ID 1638491.1)