Invalid OAM Keystore Configuration: oam_admin Fails

After you upgrade the domain component configurations and start the admin server, the oam_admin deployment state is displayed as fail.

This configuration change is applicable only if all the following are true:

• oam_admin deployment state is displayed as fail.
• ProductRelease version in oam-config, stored in db, is not updated to 12.2.1.3.0.
• OAM admin logs does not contain the following info level log message:

  First Time startup after upgrade detected. Starting upgrade.

To solve the issue, complete the following steps:

1. Go to the upgradeStatus.properties file located at <domain_home>/config/fmwconfig/.
2. Change the isUpgrade value to True.
3. Save and close the file.