code: private boolean setOverflow(int bucket, int overflow)
      {
          for (int i = 0; i < overflows; i++) {
              if (overflowBuckets[i] == bucket) {
                  overflowValues[i] = (byte) overflow;
                  return true;
              }
          }
          return false;
      }
docs: Returns false if not overflow bucket matching the given bucket id was found