Debug message: Invoking BroadcastFilter with dummy AtmosphereResource - Atmosphere/atmosphere Wiki

The following message will be displayed if you try to broadcast to an empty Broadcaster

DEBUG o.atmosphere.cpr.DefaultBroadcaster 
   - Invoking BroadcastFilter with dummy AtmosphereResource -1

This just means there are no AtmosphereResource available to deliver the message. The message will be passed to BroadcastFilter and will be cached if a BroadcasterCache has been installed.

If you have BroadcastFilter than rely on AtmosphereResource's headers or query string, make sure you only apply your logic when the AtmosphereResource.uuid() != -1 to avoid wrong application logic