@Override
protected void configure(HttpSecurity http) throws Exception {
    http
        .authorizeRequests()
            .antMatchers("/login**").permitAll()
            .antMatchers("/profile/**").fullyAuthenticated()
            .antMatchers("/").permitAll()
            .and()
        .formLogin()
            .loginPage("/login")
            .failureUrl("/login?error")
            .permitAll()
            .and()
        .logout()
            .invalidateHttpSession(true)
            .deleteCookies("JSESSIONID")
            .permitAll();
}




  @Override protected void configure(AuthenticationManagerBuilder auth) throws
  Exception {
  auth.ldapAuthentication().userDnPatterns("sAMAccountName={0}")
 .url(
 "ldap://url:389/DC=dmc,DC=local"
 ); }