# File lib/data_objects/pooling.rb, line 234
      def expired?
        @available.each do |instance|
          if DataObjects.exiting || instance.instance_variable_get(:@__allocated_in_pool) + DataObjects::Pooling.scavenger_interval <= (Time.now + 0.02)
            instance.dispose
            @available.delete(instance)
          end
        end
        size == 0
      end