环境：

• spring4.1.6
• Spring Security 4.0.1

我有2个身份验证提供程序-
一个命中ActiveDirectory，然后一个命中我创建的自定义数据库提供程序。在上述两种环境中以用户身份登录都可以正常工作。用户通过身份验证，应用继续。

但是，当输入无效的用户并且提供者都无法进行身份验证时，我在页面上收到此异常：

java.lang.StackOverflowError
    org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$UserDetailsServiceDelegator.loadUserByUsername(WebSecurityConfigurerAdapter.java:393)
    org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$UserDetailsServiceDelegator.loadUserByUsername(WebSecurityConfigurerAdapter.java:394)
    org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$UserDetailsServiceDelegator.loadUserByUsername(WebSecurityConfigurerAdapter.java:394)
    org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$UserDetailsServiceDelegator.loadUserByUsername(WebSecurityConfigurerAdapter.java:394)

这是我的WebSecurityConfigurerAdapter配置：

@Override
protected void configure(HttpSecurity http) throws Exception {
    http
            .csrf().disable()
            .formLogin().loginPage("/login").failureUrl("/login?error").defaultSuccessUrl("/overview").permitAll()
            .and()
                .logout().logoutSuccessUrl("/login?logout").permitAll()
            .and()
                .authorizeRequests()
                .antMatchers("/resources/**").permitAll()
                .antMatchers("/favicon.ico").permitAll()
                .antMatchers("/**").hasRole("AUTH");
}

@Override
protected void configure(AuthenticationManagerBuilder authManagerBuilder) throws Exception {
    authManagerBuilder
            .authenticationProvider(activeDirectoryLdapAuthenticationProvider())
            .userDetailsService(userDetailsService());

    authManagerBuilder
            .authenticationProvider(databaseAuthenticationProvider())
            .userDetailsService(userDetailsService());
}

@Bean
public ActiveDirectoryLdapAuthenticationProvider activeDirectoryLdapAuthenticationProvider() {
    ActiveDirectoryLdapAuthenticationProvider provider = new ActiveDirectoryLdapAuthenticationProvider(DOMAIN, URL);
    provider.setConvertSubErrorCodesToExceptions(true);
    provider.setUseAuthenticationRequestCredentials(true);
    provider.setUserDetailsContextMapper(userDetailsContextMapper());
    return provider;
}

@Bean
public UserDetailsContextMapper userDetailsContextMapper() {
    UserDetailsContextMapper contextMapper = new MyUserDetailsContextMapper();
    return contextMapper;
}

@Bean
public MyDatabaseAuthenticationProvider databaseAuthenticationProvider() {
    return new MyDatabaseAuthenticationProvider();
}

除了一些用于映射和查找用户的自定义逻辑外，“ MyDatabaseAuthenticationProvider”或“
MyUserDetailsContextMapper”类实际上没有什么特别的。

该应用程序不会崩溃，但显然不是我想要显示给用户的页面。:)

关于如何摆脱StackOverflowError的任何想法？