Cas no attributes come to client

i am building SSO application with CAS. in spring client, no attributes came with CasAssertionAuthenticationToken.

there are lots of samples on net, they seems to have no problem with this ( is something obvious missing?)

for cas server, its all default configuration except i changed registered service default to make sure that is not the problem. this part look like this:

    <bean class="org.jasig.cas.services.RegexRegisteredService">
        <property name="id" value="1"/>
        <property name="name" value="HTTP and IMAP"/>
        <property name="description" value="Allows HTTP(S) and IMAP(S)"/>
        <property name="serviceId" value="^(https?|imaps?)://.*"/>
        <property name="evaluationOrder" value="0"/>
        <property name="ignoreAttributes" value="true"/>
        <property name="attributeFilter">
            <bean class="org.jasig.cas.services.support.RegisteredServiceDefaultAttributeFilter"/>
        </property>
    </bean>

when debugging results there are 3 predefined attributes that are going to get released!!

in the spring, the server response when verifying ticket is like this:

<cas:serviceResponse xmlns:cas='http://ift.tt/1jNd6ZE'>
<cas:authenticationSuccess>
    <cas:user>casuser</cas:user>        
</cas:authenticationSuccess>
</cas:serviceResponse>

it contains no attributes at all. can not figure out what is missing. considering cas config is almost default configurations, this is my spring config (i used spring boot for configuring client):

@Configuration
@Order(SecurityProperties.ACCESS_OVERRIDE_ORDER)
public class Security extends WebSecurityConfigurerAdapter {

    @Bean
    public ServiceProperties serviceProperties() {
        ServiceProperties prop = new ServiceProperties();
        prop.setService("http://localhost:8180/j_spring_cas_security_check");
        prop.setSendRenew(true);
        return prop;
    }


    @Bean
    public AuthenticationProvider casAuthenticationProvider() {
        CasAuthenticationProvider casAuthenticationProvider = new CasAuthenticationProvider();
        casAuthenticationProvider.setAuthenticationUserDetailsService(authenticationUserDetailsService());
        casAuthenticationProvider.setServiceProperties(serviceProperties());
        casAuthenticationProvider.setTicketValidator(ticketValidator());
        casAuthenticationProvider.setKey("test_app_key");
        return casAuthenticationProvider;
    }

    @Bean
    public AuthenticationUserDetailsService<CasAssertionAuthenticationToken> authenticationUserDetailsService() {
        return new TestCasAuthenticationUserDetailsService();
    }

    @Bean
    public TicketValidator ticketValidator() {
        return new Cas20ServiceTicketValidator("https://localhost:8443/cas");
    }

    @Bean
    public CasAuthenticationEntryPoint casAuthenticationEntryPoint() {
        CasAuthenticationEntryPoint casAuthenticationEntryPoint = new CasAuthenticationEntryPoint();
        casAuthenticationEntryPoint.setLoginUrl("https://localhost:8443/cas/login");
        casAuthenticationEntryPoint.setServiceProperties(serviceProperties());
        return casAuthenticationEntryPoint;
    }

    @Bean
    public CasAuthenticationFilter casAuthenticationFilter() throws Exception {
        CasAuthenticationFilter casAuthenticationFilter = new CasAuthenticationFilter();
        casAuthenticationFilter.setAuthenticationManager(authenticationManager());
        return casAuthenticationFilter;
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .addFilter(casAuthenticationFilter());
        http
                .exceptionHandling()
                .authenticationEntryPoint(casAuthenticationEntryPoint());
        http.authorizeRequests()
                .anyRequest().authenticated();
    }

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

can anyone tell me what is that obvious part that i am missing?