It's important to know if the stream was resumed. authenticated() is the
ideal callback for Managers to reset their state (e.g. cached values of
the connection state). But if the stream was resumed, the cached values
don't have to be reset.
You can set your custom debugger class as before, by using clear api
method ReflectionDebuggerFactory.setDebuggerClass, or you can set custom
debugger factory using SmackConfiguration.setDebuggerFactory if it's not
enough flexible for your needs
