docs: public static long calculateDelta(long reportedHandledCount, long lastKnownHandledCount) {
          if (lastKnownHandledCount > reportedHandledCount) {
              throw new IllegalStateException("Illegal Stream Management State: Last known handled count (" + lastKnownHandledCount + ") is greater than reported handled count (" + reportedHandledCount + ')');
          }
          return (reportedHandledCount - lastKnownHandledCount) & MASK_32_BIT;
      }