How to get all actionbean classes at contextInitialized()

A similar question is answered here: Stripes 1.5 - any way to ask the system for a list of all ActionBeans? it seems only work in an actionbean code, i.e: when it actually receives a request.

What I want is to list all actionbeans in contextListener code, for instance contextInitialized() function. Error happened:

net.sourceforge.stripes.exception.StripesRuntimeException: Something is trying to access the current Stripes configuration but the current request was never routed through the StripesFilter! As a result the appropriate Configuration object cannot be located. Please take a look at the exact URL in your browser's address bar and ensure that any requ开发者_JAVA百科ests to that URL will be filtered through the StripesFilter according to the filter mappings in your web.xml.
    at net.sourceforge.stripes.controller.StripesFilter.getConfiguration(StripesFilter.java:160)
    at net.sourceforge.stripes.util.CryptoUtil.encrypt(CryptoUtil.java:123) 

My purpose is to automatically initialize all the plug-in classes added later, without maintaining a list of all actionbeans somewhere in the code. Any suggestion? (or, at least, is it possible to do so?)

Best Regards,

OK. After a while, I figured out the solution: using Stripes ResolverUtil

ResolverUtil<ActionBean> resolver = new ResolverUtil<ActionBean>();
resolver.findImplementations(ActionBean.class, "my.base.package");
Set<Class<? extends ActionBean>> beans = resolver.getClasses();

Thanks!