Spring Boot Spring Security 5, OAuth2Login Not working as expected - spring

Question

We have developed our own Authorization Server which we are using for Single Sign on
we developed our client app with the annotation #EnableOAuth2Sso with the following configuration
#Override
protected void configure(HttpSecurity http) throws Exception {
http.sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.ALWAYS)
.and()
.antMatcher("/**")
.addFilterBefore(ssoFilter(), BasicAuthenticationFilter.class).authorizeRequests()
.and()
.authorizeRequests()
.antMatchers("/","/login/**","/callback/url/**","/error**","/webjars/**","/favicon.ico**").permitAll()
.anyRequest().authenticated()
.and().formLogin().failureHandler(customAuthenticationFailureHandler)
.and().httpBasic()
.and()
.logout().invalidateHttpSession(true).deleteCookies("JSESSIONID");
it was working fine
but just now I want to use the .oauth2Login() features comes with Spring Security 5 so I changed the annotation to #EnableOAuth2Client from #EnableOAuth2Sso and used the following configuration
#Override
public void configure(HttpSecurity http) throws Exception {
http.antMatcher("/**")
.authorizeRequests()
.anyRequest()
.authenticated()
.and()
.oauth2Login();
}
now while compiling I am getting the following error messages
Description:
Method springSecurityFilterChain in org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration required a bean of type 'org.springframework.security.oauth2.client.registration.ClientRegistrationRepository' that could not be found.
The following candidates were found but could not be injected:
- Bean method 'clientRegistrationRepository' in 'OAuth2ClientRegistrationRepositoryConfiguration' not loaded because OAuth2
Clients Configured Condition registered clients is not available
Action:
Consider revisiting the entries above or defining a bean of type 'org.springframework.security.oauth2.client.registration.ClientRegistrationRepository' in your configuration.
So I changed my application.properties from
security.oauth2.client.auto-approve-scopes=read,write
security.oauth2.client.access-token-uri=http://localhost:8080/xxxxx/oauth/token
security.oauth2.client.user-authorization-uri=http://localhost:8080/xxxxx/oauth/authorize
security.oauth2.client.client-id=xxx
security.oauth2.client.client-secret=secret
security.oauth2.client.pre-established-redirect-uri=http://localhost:11001/xxx/login/oauth2/code
security.oauth2.client.registered-redirect-uri=http://localhost:11001/xxx/login/oauth2/code
security.oauth2.client.useCurrentUri=false
security.oauth2.client.use-current-uri=false
security.oauth2.client.grant-type=authorization_code, refresh_token
to the following
spring.security.oauth2.client.registration.client-id=xxx_client
spring.security.oauth2.client.registration.client-secret=secret
spring.security.oauth2.client.registration.authorization-grant-type=authorization_code,refresh_token
spring.security.oauth2.client.registration.redirect-uri=http://localhost:11001/xxx/login/oauth2/code
spring.security.oauth2.client.registration.scope=read,write
spring.security.oauth2.client.registration.client-name=xxxxx
spring.security.oauth2.client.registration.xxxxx.client-authentication-method=POST
spring.security.oauth2.client.provider.token-uri=http://localhost:8080/xxxxx/oauth/token
spring.security.oauth2.client.provider.authorization-uri=http://localhost:8080/xxxxx/oauth/authorize
spring.security.oauth2.client.provider.user-info-uri=http://localhost:8080/xxxxx/validateLogin
But it displays a welcome page where our authorization server name is shown i.e xxxxx and if I click that link it does not connect to our authorization server.
I have confusion here what is the difference between #EnableOAuth2Sso and #EnableOAuth2Client Why when we use OAuth2Login() we need to change our properties
Is there any good example of using OAuth2Login with Custom Oauth2 provider (instead of google,facebook,okta etc)I searched google but no where any example provided