Authentication meachanism in spring

I was reading about how Authentication works in Spring and found that there are two filters taking care of the Authentication.

AuthenticationProcessingFilter BasicProcessingFilter

So I set breakpoints within BasicProcessingFilter::doFilterHttp and AuthenticationProcessingFilter::attemptAuthentication and AuthenticationProcessingFilterEntryPoint::commence and the program didn't stop at any of them.

Does it mean that my web-application current doesn't have an authentication mechanism at all?

Maybe it has something to do with that I defined a custom resource filter as follows:

<beans:bean id="secureResourceFilter"
    class="my.custom.class.CustomSecureResourceFilter">
    <beans:property name="jdbcSecuredUrlRoleDao" ref="jdbcSecuredUrlRoleDao" />
</beans:bean>

In my Spring-security configuration I didn't define AuthenticationProcessingFilter and BasicProcessingFilter directly. I just specify

<filter>
  <filter-name>springSecurityFilterChain</filter-name>
  <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>

<filter-mapping>
  <filter-name>springSecurityFilterChain</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>

in web.xml.