Using WebSecurityConfigurerAdapter with Spring OAuth2 and user-info-uri

I have created an Authorization service as follows

@SpringBootApplication
@EnableAuthorizationServer
public class AuthorizationApplication {
   ...
}

With this application.properties.

server.port=9000
security.oauth2.client.client-id=monederobingo
security.oauth2.client.client-secret=monederobingosecret
security.oauth2.client.authorized-grant-types=authorization_code,refresh_token,password,client_credentials
security.oauth2.client.scope=company,client

Then, in a separate spring boot project I have created a Resource Server.

@SpringBootApplication
@EnableResourceServer
public class App {
   ...
}

With this application.properties.

server.port=9090
spring.application.name=app
security.oauth2.resource.user-info-uri=http://localhost:9000/user

Now, everything works fine if I send a request like this localhost:9090/api with the appropriate token that was retrieved by Authorization Service.

However, I don't want to send this token when sending requests to localhost:9090/login.

For this I have created this class in my Resource server spring boot app.

@Configuration
public class SpringConfig extends WebSecurityConfigurerAdapter {
    @Override protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable()
                .authorizeRequests()
                .antMatchers("/login")
                .permitAll()
                .antMatchers("/api/**")
                .authenticated();
    }

}

And now I don't need to send any token to send a request to /login.

However, I'm now geting the following message when sending request to /api with a valid token.

{
  "timestamp": 1496027102659,
  "status": 403,
  "error": "Forbidden",
  "message": "Access Denied",
  "path": "/api/v1/points_configuration/314"
}

How can configure security for only a few URL patterns in Spring Security OAuth2?