R12.2 Upgrade: adpatch fails with "Unable to get passwords from Vault"

Sumary:
=======

Configuration: Single Node

Host Name: r12dev
OS: Oracle Linux 6

DB: 12.1.0.2
DB Name: R12D

Apps: 12.1.3

Action: Upgrading to 12.2

Doc: Oracle® E-Business Suite Upgrade Guide Release 12.0 and 12.1 to 12.2 Part No. E48839-11
Chapater: Oracle E-Business Suite Online Patching
Section: Enabling Online Patching
Step: 3. Apply the latest Oracle E-Business Suite Online Patching Readiness and GSCC Report Patch

Error:
=======

Error: Unable to execute statement <
Begin
ad_jar.get_jripasswords(:l_storepass, :l_keypass);
End;
> len = 63

AutoPatch error:
ORA-01031: insufficient privileges
ORA-06512: at "SYS.DBMS_SESSION", line 122
ORA-06512: at "APPS.AD_JAR", line 17
ORA-06512: at line 3

AutoPatch error:

Unable to get passwords from Vault