title: Spring Security OAuth2 always redirects to /login page having a valid Bearer header
body: <p>I am having a hard time getting Spring Security OAuth2 to work. I am able to get a access_token from /oauth/token endpoint but accessing a protected resource with that token in header "Authorization: Bearer $TOKEN" always redirects me to /login. This is a complete REST API.</p>
  
  <p>OAuth2Config</p>
  
  <pre><code>    @Configuration
  public class OAuth2Configuration {
  
      private static final String SERVER_RESOURCE_ID = "oauth2-server";
  
      private static InMemoryTokenStore tokenStore = new InMemoryTokenStore();
  
  
      @Configuration
      @EnableResourceServer
      protected static class ResourceServer extends ResourceServerConfigurerAdapter {
  
          @Override
          public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
              resources.tokenStore(tokenStore).resourceId(SERVER_RESOURCE_ID);
          }
  
          @Override
          public void configure(HttpSecurity http) throws Exception {
              http.requestMatchers().antMatchers("/admin**").and().authorizeRequests().antMatchers("/admin**").access("#oauth2.hasScope('read')");
          }
      }
  
      @Configuration
      @EnableAuthorizationServer
      protected static class AuthConfig extends AuthorizationServerConfigurerAdapter {
  
          @Autowired
          private AuthenticationManager authenticationManager;
  
  
          @Override
          public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
              endpoints.authenticationManager(authenticationManager).tokenStore(tokenStore).approvalStoreDisabled();
          }
  
          @Override
          public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
              clients.inMemory()
                  .withClient("my-client")
                      .authorizedGrantTypes("authorization_code","refresh_token", "password")
                      .authorities("ROLE_CLIENT")
                      .scopes("read")
                      .resourceIds(SERVER_RESOURCE_ID)
                      .secret("secret")
              ;
          }
      }
  }
  </code></pre>
  
  <p>SecurityConfig class</p>
  
  <pre><code>@Configuration
  @EnableWebSecurity
  public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
  
      @Autowired
      private UserDetailsService userDetailsService;
  
      @Bean
      public BCryptPasswordEncoder bCryptPasswordEncoder() {
          return new BCryptPasswordEncoder();
      }
  
      @Autowired
      public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
  
          auth
                  .userDetailsService(userDetailsService)
                  .passwordEncoder(bCryptPasswordEncoder());
  
      }
  
      @Override
      @Bean
      public AuthenticationManager authenticationManagerBean() throws Exception {
          return super.authenticationManagerBean();
      }
  }
  </code></pre>
  
  <p>Following are the debug logs</p>
  
  <pre><code>2017-04-10 10:58:31.634[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Initializing servlet 'dispatcherServlet'
  [2m2017-04-10 10:58:31.635[0;39m [32m INFO[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.a.c.c.C.[Tomcat].[localhost].[/]      [0;39m [2m:[0;39m Initializing Spring FrameworkServlet 'dispatcherServlet'
  [2m2017-04-10 10:58:31.635[0;39m [32m INFO[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m FrameworkServlet 'dispatcherServlet': initialization started
  [2m2017-04-10 10:58:31.635[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Using MultipartResolver [org.springframework.web.multipart.support.StandardServletMultipartResolver@40aad17d]
  [2m2017-04-10 10:58:31.639[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Unable to locate LocaleResolver with name 'localeResolver': using default [org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver@70f4e8c6]
  [2m2017-04-10 10:58:31.643[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Unable to locate ThemeResolver with name 'themeResolver': using default [org.springframework.web.servlet.theme.FixedThemeResolver@201a4016]
  [2m2017-04-10 10:58:31.649[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Unable to locate RequestToViewNameTranslator with name 'viewNameTranslator': using default [org.springframework.web.servlet.view.DefaultRequestToViewNameTranslator@5f14eeee]
  [2m2017-04-10 10:58:31.656[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Unable to locate FlashMapManager with name 'flashMapManager': using default [org.springframework.web.servlet.support.SessionFlashMapManager@1688575]
  [2m2017-04-10 10:58:31.656[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Published WebApplicationContext of servlet 'dispatcherServlet' as ServletContext attribute with name [org.springframework.web.servlet.FrameworkServlet.CONTEXT.dispatcherServlet]
  [2m2017-04-10 10:58:31.656[0;39m [32m INFO[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m FrameworkServlet 'dispatcherServlet': initialization completed in 21 ms
  [2m2017-04-10 10:58:31.656[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Servlet 'dispatcherServlet' configured successfully
  [2m2017-04-10 10:58:31.692[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m DispatcherServlet with name 'dispatcherServlet' processing POST request for [/oauth/token]
  [2m2017-04-10 10:58:31.695[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36ms.w.s.m.m.a.RequestMappingHandlerMapping[0;39m [2m:[0;39m Looking up handler method for path /oauth/token
  [2m2017-04-10 10:58:31.699[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36ms.w.s.m.m.a.RequestMappingHandlerMapping[0;39m [2m:[0;39m Did not find handler method for [/oauth/token]
  [2m2017-04-10 10:58:32.012[0;39m [32m INFO[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.s.o.p.token.store.JdbcTokenStore    [0;39m [2m:[0;39m Failed to find access token for token 7c74f287-e187-4228-b0c2-b79972f9b89b
  [2m2017-04-10 10:58:32.226[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.w.s.m.m.a.HttpEntityMethodProcessor [0;39m [2m:[0;39m Written [7c74f287-e187-4228-b0c2-b79972f9b89b] as "application/json" using [org.springframework.http.converter.json.MappingJackson2HttpMessageConverter@2fd4312a]
  [2m2017-04-10 10:58:32.226[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Null ModelAndView returned to DispatcherServlet with name 'dispatcherServlet': assuming HandlerAdapter completed request handling
  [2m2017-04-10 10:58:32.226[0;39m [32mDEBUG[0;39m [35m6456[0;39m [2m---[0;39m [2m[nio-8080-exec-1][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Successfully completed request
  </code></pre>
  
  <p>What is it that I am missing? I have almost tried every example over the web into my existing project but I am always redirected to the /login endpoint when I try to request a protected resource with a valid token.</p>
  
  <p>Thanks.</p>