GWT and spring security integration,DelegatingFilterProxy has a dead loop

There is a pure GWT solution here:GWT Spring Security Integration (PURE GWT, NO JSP)

1,Do not use http element at all (http tag from config namespace)

2,Define your AuthenticationRpcService

3,Add AuthenticationRpcService.authenticate(user,password) method

4,Inject into AuthenticationServiceImpl AuthenticationProvider bean from security-context.xml

5,Implement AuthenticationRpcService.authenticate(user,password) as :

User user = new User(login, password, true, true, true, true, new ArrayList<GrantedAuthority>());  Authentication auth = new UsernamePasswordAuthenticationToken(user, password,          new ArrayList<GrantedAuthority>());  try {      auth = this.authenticationProvider.authenticate(auth);  } catch (BadCredentialsException e) {      throw new ClientSideBadCredentialsException(e.getMessage(), e);  }  SecurityContext sc = new SecurityContextImpl();  sc.setAuthentication(auth);  SecurityContextHolder.setContext(sc);  

6,Ensure that spring security filter chain is executed during processing of each your GWT RPC call (to be sure that SecurityContext populated into SecurityContextHolder).

For this sixth step, added blow to web.xml:

<!-- Spring Security related configuration -->  <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>/dp_web/service/*</url-pattern>  </filter-mapping>  

and blow to applicationContext.xml:

<bean id="springSecurityFilterChain" class="org.springframework.web.filter.DelegatingFilterProxy"/>  

Then call authentication service,got blow error:

<p>Problem accessing /service/authenticate. Reason:  <pre>    Server Error</pre></p><h3>Caused by:</h3><pre>java.lang.StackOverflowError      at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)      at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)      at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)      at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)      at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)      at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)      at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)  

As you can see there is a dead loop that causes StackOverflowError,and I am not good at spring,after two hours googling,can't figure out a way to solve this problem,so can anybody help me?Thanks.

--
You received this message because you are subscribed to the Google Groups "GWT Users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscribe@googlegroups.com.
To post to this group, send email to google-web-toolkit@googlegroups.com.
Visit this group at https://groups.google.com/group/google-web-toolkit.
For more options, visit https://groups.google.com/d/optout.