code: private boolean notContains(long prefix) {
          long cmp;
  
          for (int hash = Prefix.hashFirst(prefix, table.length); true; hash = Prefix.hashNext(prefix, hash, table.length)) {
              cmp = table[hash];
              if (cmp == FREE) {
                  return true;
              }
              if (cmp == prefix) {
                  return false;
              }
          }
      }
docs: --