如何将此身份验证提供程序xml转换为java config？

Question

我正在尝试摆脱我们的securityContext.xml，希望一次只声明一个……也升级到Spring Security 5，但仍然使用Oauth 2.2。

  <security:authentication-manager
        alias="authenticationManager">
        <security:authentication-provider
            user-service-ref="clientDetailsUserService" />
        <security:authentication-provider
            ref="dexAuthenticationProvider" />
    </security:authentication-manager>

我尝试过

@Autowired
public void configureGlobal(
    AuthenticationManagerBuilder builder,
    DexAuthenticationProvider dexAuthenticationProvider,
    ClientDetailsUserDetailsService clientDetailsUserDetailsService
) throws Exception {
    builder.authenticationProvider( dexAuthenticationProvider )
        .userDetailsService( clientDetailsUserDetailsService  );
}

但是尝试创建此bean时出现错误

     @Bean
ClientCredentialsTokenEndpointFilter clientCredentialsTokenEndpointFilter(
    final AuthenticationManager authenticationManager ) {
    ClientCredentialsTokenEndpointFilter endpointFilter = new ClientCredentialsTokenEndpointFilter();
    endpointFilter.setAuthenticationManager( authenticationManager );
    return endpointFilter;
}

这是个例外

Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.security.authentication.AuthenticationManager' available: expected single matching bean but found 12: org.springframework.security.authentication.ProviderManager#0,org.springframework.security.config.authentication.AuthenticationManagerFactoryBean#0,org.springframework.security.authentication.ProviderManager#1,org.springframework.security.config.authentication.AuthenticationManagerFactoryBean#1,org.springframework.security.authentication.ProviderManager#2,org.springframework.security.config.authentication.AuthenticationManagerFactoryBean#2,org.springframework.security.authentication.ProviderManager#3,org.springframework.security.config.authentication.AuthenticationManagerFactoryBean#3,org.springframework.security.authentication.ProviderManager#4,org.springframework.security.config.authentication.AuthenticationManagerFactoryBean#4,org.springframework.security.authentication.ProviderManager#5,authenticationManagerBean

嗯...这些全部是12个？应该只有1个？