Spring Security roles are not working

I have configured spring security in my app,authentication is working well but authorization is not working mean @secured() annotation is not working.i am getting error when i access url "There was an unexpected error (type=Forbidden, status=403). Access is denied".

My spring config is

@Autowired
    private MongoDBAuthenticationProvider authenticationProvider;

    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers("/js/**", "/css/**");
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {

        http.formLogin().defaultSuccessUrl("/resource")
                .and().logout().and().authorizeRequests()
                .antMatchers("/logout").permitAll()
                .antMatchers("/admin/**").hasRole("ADMIN")
                .anyRequest()
                .authenticated()
                .and().csrf().disable();
    }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.authenticationProvider(authenticationProvider);
    }

My controller is

@RestController
@RequestMapping("/user")
public class UserController {

    @Autowired
    UserService userService;

    @Secured(value={"ROLE_ADMIN"})
    @RequestMapping(value = "/{id}", method = RequestMethod.GET)
    public void getUser() {
        System.out.println("working");
    }
}

Database user is

{ "_id" : ObjectId("555982a5360403572551660c"), "username" : "user", "password" : "pass", "role" : "ADMIN" }