code: protected HashtableEntry readEntry(long location,
                                         long previous,
                                         int retrieveMode,
                                         boolean checkExpired,
                                         int tableid)
                      throws IOException,
                      EOFException,
                      FileManagerException,
                      ClassNotFoundException,
                      HashtableOnDiskException {
  
          if (location == 0)
              return null;
  
          long next = 0;
          int hash = 0;
  
          initReadBuffer(location);
          next = headerin.readLong();
          hash = headerin.readInt();
  
          return readEntry2(location, next, hash, previous, retrieveMode, checkExpired, tableid, null, null);
      }
docs: ************************************************************************