Spring Boot OAuth2.0 with Azure Authentication Error – Missing required “user name” attribute name in UserInfoEndpoint for Client Registration: azure

I am trying to login using correct credentials and I am getting following error. I have created Azure AD B2C application following spring starters described on Azure website. User created in Azure Active Directory is member of two groups test2 and test3. I have another spring application, authentication and authorization is working in that application but not in this one. Configuration wise both applications are similar.

2021-01-07 16:07:43,142 DEBUG [ip= rq= ep=] [AbstractAuthenticationProcessingFilter.java:345][unsuccessfulAuthentication:http-nio-8080-exec-2] Authentication request failed: org.springframework.security.oauth2.core.OAuth2AuthenticationException: [missing_user_name_attribute] Missing required "user name" attribute name in UserInfoEndpoint for Client Registration: azure
org.springframework.security.oauth2.core.OAuth2AuthenticationException: [missing_user_name_attribute] Missing required "user name" attribute name in UserInfoEndpoint for Client Registration: azure
    at org.springframework.security.oauth2.client.userinfo.DefaultOAuth2UserService.loadUser(DefaultOAuth2UserService.java:103)
    at org.springframework.security.oauth2.client.oidc.userinfo.OidcUserService.loadUser(OidcUserService.java:100)
    at com.microsoft.azure.spring.autoconfigure.aad.AADOAuth2UserService.loadUser(AADOAuth2UserService.java:47)
    at com.microsoft.azure.spring.autoconfigure.aad.AADOAuth2UserService.loadUser(AADOAuth2UserService.java:27)
    at org.springframework.security.oauth2.client.oidc.authentication.OidcAuthorizationCodeAuthenticationProvider.authenticate(OidcAuthorizationCodeAuthenticationProvider.java:174)
    at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:175)
    at org.springframework.security.oauth2.client.web.OAuth2LoginAuthenticationFilter.attemptAuthentication(OAuth2LoginAuthenticationFilter.java:185)
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:212)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.oauth2.client.web.OAuth2AuthorizationRequestRedirectFilter.doFilterInternal(OAuth2AuthorizationRequestRedirectFilter.java:160)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:117)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:92)
    at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:77)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:109)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:103)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373)
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1594)
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Thread.java:823)

My Spring Security Code

@Override
        protected void configure(HttpSecurity http)
            throws Exception
        {
            log.info("Configuring AAD security.");
            log.info(String.format("TENANT_ID: %s", TENANT_ID));
            log.info(String.format("CLIENT_ID: %s", CLIENT_ID));
            http
                .authorizeRequests()
                .anyRequest().authenticated()
                .and()
                .oauth2Login()
                .userInfoEndpoint()
                .oidcUserService(_userService);
            log.warn("Configured AAD security configuration.");
        }

Answer

You shoud specify the username attribute of userinfo endpoint response in spring oauth2 provider configuration. Response of Azure userinfo endpoint is like below,

{
    "sub": "OLu859SGc2Sr9ZsqbkG-QbeLgJlb41KcdiPoLYNpSFA",
    "name": "Mikah Ollenburg", // names all require the “profile” scope.
    "family_name": " Ollenburg",
    "given_name": "Mikah",
    "email": "[e-mail]" //requires the “email” scope.
}

The corresponding configuration is

spring:
  security:
    oauth2:
      client:
        provider:
          azure:
            user-name-attribute: name