Custom Spring filter causing next filter in chain not to fire?

I'm using a custom Spring Security filter which overrides AbstractAuthenticationProcessingFilter but I must have written it incorrectly as it seems to never call the rest of the filter chain. Specifically, I'm relying on the OpenEntityManagerInViewFilter filter to ensure Jackson+Hibernate can handle lazy-loaded objects.

If my web.xml has OpenEntityManagerInViewFilter first, everything works:

<filter>
    <filter-name>hibernateFilterChain</filter-name>
    <filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>hibernateFilterChain</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<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>

If I place the springSecurityFilterChain at the top, however, my application behaves as though I didn't specify the OpenEntityManagerInViewFilter at all.

Here is my springSecurity.xml:

<?xml version="1.0"?>
<beans xmlns="http://ift.tt/GArMu6"
xmlns:security="http://ift.tt/1c8inpe"
xmlns:xsi="http://ift.tt/ra1lAU" xmlns:p="http://ift.tt/1jdM0fE"
xsi:schemaLocation="http://ift.tt/GArMu6
    http://ift.tt/QEDs1e
    http://ift.tt/1c8inpe
    http://ift.tt/1epvZ6L">

<security:http entry-point-ref="restAuthenticationEntryPoint"
    use-expressions="true" create-session="stateless">

    <security:custom-filter ref="authenticationTokenProcessingFilter"
        position="FORM_LOGIN_FILTER" />
    <security:intercept-url pattern="/**"
        access="isAuthenticated()" />

    <security:logout />
</security:http>

<bean class="edu.ucdavis.dss.dw.security.CustomTokenAuthenticationFilter"
    id="authenticationTokenProcessingFilter">
    <constructor-arg type="java.lang.String">
        <value>/**</value>
    </constructor-arg>
</bean>

<security:authentication-manager>
    <security:authentication-provider
        user-service-ref="userService"></security:authentication-provider>
</security:authentication-manager>

<bean id="userService" class="edu.ucdavis.dss.dw.services.UserAuthenticationService"></bean>

</beans>

And finally, here is the CustomTokenAuthenticationFilter itself, which may be causing the issues:

public class CustomTokenAuthenticationFilter extends AbstractAuthenticationProcessingFilter {
    @Autowired @Qualifier("org.springframework.security.authenticationManager")
    private AuthenticationManager authenticationManager;

    public CustomTokenAuthenticationFilter(String defaultFilterProcessesUrl) {
        super(defaultFilterProcessesUrl);
        super.setRequiresAuthenticationRequestMatcher(new AntPathRequestMatcher(defaultFilterProcessesUrl));
        setAuthenticationManager(new NoOpAuthenticationManager());
        setAuthenticationSuccessHandler(new TokenSimpleUrlAuthenticationSuccessHandler());
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException, IOException, ServletException {
        String token = request.getParameter("token");

        if(token == null) {
            throw new AuthenticationServiceException("Token Missing");
        }

        Authentication authResponse;

        try {
            authResponse = authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(token, "dssit"));
        } catch (AuthenticationException e) {
            throw new AuthenticationServiceException("Bad Token");
        }

        return authResponse;
    }
}

In summary: I made a custom security filter and it appears not to call any filters which are listed after it. If I remove my custom filter and use something built-in like security:http-basic, it works fine.

Thanks in advance for any help you can offer.