It seems the change fixed conversation scope, but for session scope still having the issue. I initialized request scope, conversation scope, session scoped and application scoped beans, only reported one with Session Scope.

I'm still wondering why not override the cleanup() method in the AbstractManagedContext, and the AbstractBoundContext and AbstractUnboundContext are extended from this class, cleanup() is the best spot to fix this issue, rather than each classes that extended from them, for example the conversation Context and SessionContext are all extented from BoundContext. Request is from UnboundContext.