我需要改变什么才能抛出401异常？

我有一个身份验证过滤器：

public class AuthenticationFilter extends GenericFilterBean {

...

@Override
public void doFilter(ServletRequest request,ServletResponse response,FilterChain chain) throws IOException,ServletException {
    HttpServletRequest httpRequest = asHttp(request);
    HttpServletResponse httpResponse = asHttp(response);
    Optional<String> token = Optional.fromNullable(httpRequest.getHeader("X-Auth-Token"));

    try {
        if (token.isPresent()) {
            logger.debug("Trying to authenticate user by X-Auth-Token method. Token: {}",token);
            processTokenAuthentication(token);
            addSessionContextToLogging();
        }

        logger.debug("AuthenticationFilter is passing request down the filter chain");
        chain.doFilter(request,response);
    } catch (InternalAuthenticationServiceException internalAuthenticationServiceException) {
        SecurityContextHolder.clearContext();
        logger.error("Internal authentication service exception",internalAuthenticationServiceException);
        httpResponse.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
    } catch (AuthenticationException authenticationException) {
        SecurityContextHolder.clearContext();
        httpResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED,authenticationException.getMessage());
    } finally {
        MDC.remove(TOKEN_SESSION_KEY);
        MDC.remove(USER_SESSION_KEY);
    }
}

private void addSessionContextToLogging() {
    ...
}

...

private void processTokenAuthentication(Optional<String> token) {
    Authentication resultOfAuthentication = tryToAuthenticateWithToken(token);
    SecurityContextHolder.getContext().setAuthentication(resultOfAuthentication);
}

private Authentication tryToAuthenticateWithToken(Optional<String> token) {
    PreAuthenticatedAuthenticationToken requestAuthentication = new PreAuthenticatedAuthenticationToken(token,null);
    return tryToAuthenticate(requestAuthentication);
}

private Authentication tryToAuthenticate(Authentication requestAuthentication) {
    Authentication responseAuthentication = authenticationManager.authenticate(requestAuthentication);
    if (responseAuthentication == null || !responseAuthentication.isAuthenticated()) {
        throw new InternalAuthenticationServiceException("Unable to authenticate Domain User for provided credentials");
    }
    logger.debug("User successfully authenticated");
    return responseAuthentication;
}

AuthenticationProvider实现：

@Provider
public class TokenAuthenticationProvider implements AuthenticationProvider {

@Override
public Authentication authenticate(Authentication authentication) throws AuthenticationException {
    Optional<String> token = (Optional) authentication.getPrincipal();
    if (!token.isPresent() || token.get().isEmpty()) {
        throw new BadCredentialsException("No token set.");
    }
    if (!myCheckHere()){
        throw new BadCredentialsException("Invalid token");
    }

    return new PreAuthenticatedAuthenticationToken(myConsumerObject,null,AuthorityUtils.commaSeparatedStringToAuthorityList("ROLE_API_USER"));
}

...

}

以及如下配置：

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

@Override
protected void configure(HttpSecurity http) throws Exception {
    http.
            csrf().disable().
            sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).
            and().
            anonymous().disable().
            exceptionHandling().authenticationEntryPoint(unauthorizedEntryPoint());

    http.addFilterBefore(new AuthenticationFilter(authenticationManager()),BasicAuthenticationFilter.class);
}


@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.authenticationProvider(tokenAuthenticationProvider());
}


@Bean
public AuthenticationProvider tokenAuthenticationProvider() {
    return new TokenAuthenticationProvider();
}

@Bean
public AuthenticationEntryPoint unauthorizedEntryPoint() {
    return (request,response,authException) -> response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
}
}