Is there a way in Android Firebase to get a list of all attached listener

I create a standard listener like this

private ValueEventListener aListener = new ValueEventListener() {
        @Override
        public void onDataChange(DataSnapshot dataSnapshot) {

        }

        @Override
        public void onCancelled(DatabaseError databaseError) {

        }
    };

And attached to my Firebase databas

databaseRef.child(chatRoot)
                .orderByChild("some key")
                .limitToLast(12)
                .addValueEventListener(aListener );

If I now have 5-10 different listener I wanted a way to peek in and see how many there are attached. Lets say I want to do this to insure listener are on/off