ClassLoader moduleClassLoader = wac.getClassLoader();
if (this.invoker == null || this.currentClassLoader != moduleClassLoader) {
ThreadContextClassLoaderHttpServiceInvoker threadContextClassLoaderInvoker
= new ThreadContextClassLoaderHttpServiceInvoker(delegateServlet, setClassLoader, moduleClassLoader);
this.invoker = new ReadWriteLockingInvoker(threadContextClassLoaderInvoker);
this.currentClassLoader = moduleClassLoader;
}
this.invoker.invoke(request, response, null);
}