code: public String getBucketName(int bitIndex) {
  
          if (bitIndex == 0) {
              return BUCKET_OTHER;
          } else {
              String result = null;
              if ((bitIndex - 1) < m_bucketNames.size()) {
                  result = m_bucketNames.get(bitIndex - 1);
              }
              if (result == null) {
                  return "??? " + bitIndex;
              } else {
                  return result;
              }
          }
      }
docs: Gets the bucket name for the given bit index.<p>
  
  @param bitIndex the bit index for the bucket in the bit set representation.<p>
  
  @return the name of the bucket