Runtime Error After Changing Authorization Code Credentials to JWT User Assertion for OAuth

Assume you have a connection configured with the Authorization Code Credentials security policy and an integration established. If you then change the security policy from Authorization Code Credentials to JWT User Assertion for OAuth policy, you may encounter a runtime failure in the integration with the following error message

oracle.cloud.security.oauth.jwt.utils.JWTException: oracle.cloud.security.oauth.jwt.utils.JWTException: 
Fail to parse the JSON data

Solution: This runtime error occurs after changing the connection security policy from Authorization Code Credentials to JWT User Assertion for OAuth policy and is currently unresolvable.