I am trying run below application in my local(with necessary config changes related to OKTA) https://github.com/oktadeveloper/okta-spring-security-authentication-example/tree/master/oauth-okta
All is working fine when application is accessed by browser. authentication is working fine at OKTA and redirected to application correctly.
but when i tried the same API using postman, OidcUser is coming as null. I generated accessToken from postman with grant_type client_credentials
@AuthenticationPrincipal OidcUser oidcUser