Wildfly上的Spring Security：执行过滤器链时出错

我正在尝试将 Spring Security SAML Extension 与 Spring Boot 集成 .

关于此事，我确实开发了一个完整的示例应用程序 . 它的源代码可以在GitHub上找到：

• spring-boot-saml-integration on GitHub

通过将其作为Spring Boot应用程序运行（针对SDK内置的Application Server运行），WebApp可以正常工作 .

不幸的是，相同的AuthN过程在 Undertow/WildFly 上根本不起作用 .

根据日志，IdP实际执行 AuthN 过程：我的自定义 UserDetails 实现的指令被正确执行 . 尽管有执行流程，但Spring并未设置并保留当前用户的权限 .

@Component
public class SAMLUserDetailsServiceImpl implements SAMLUserDetailsService {

    // Logger
    private static final Logger LOG = LoggerFactory.getLogger(SAMLUserDetailsServiceImpl.class);

    @Override
    public Object loadUserBySAML(SAMLCredential credential)
            throws UsernameNotFoundException, SSOUserAccountNotExistsException {
        String userID = credential.getNameID().getValue();
        if (userID.compareTo("jdoe@samplemail.com") != 0) {     // We're simulating the data access.
            LOG.warn("SSO User Account not found into the system");
            throw new SSOUserAccountNotExistsException("SSO User Account not found into the system", userID);
        }
        LOG.info(userID + " is logged in");
        List<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
        GrantedAuthority authority = new SimpleGrantedAuthority("ROLE_USER");
        authorities.add(authority);
        ExtUser userDetails = new ExtUser(userID, "password", true, true, true,
                true, authorities, "John", "Doe");
        return userDetails;
    }
}

在调试时，我发现问题依赖于 FilterChainProxy 类 . 在运行时， ServletRequest 的属性 FILTER_APPLIED 具有空值，因此Spring清除 SecurityContextHolder .

private final static String FILTER_APPLIED = FilterChainProxy.class.getName().concat(".APPLIED");

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    boolean clearContext = request.getAttribute(FILTER_APPLIED) == null;
    if (clearContext) {
        try {
            request.setAttribute(FILTER_APPLIED, Boolean.TRUE);
            doFilterInternal(request, response, chain);
        } finally {
            SecurityContextHolder.clearContext();
            request.removeAttribute(FILTER_APPLIED);
        }
    } else {
        doFilterInternal(request, response, chain);
    }
}

在 VMware vFabric tc Sever 和 Tomcat ，一切都很好 . 你对解决这个问题有什么想法吗？