code: public static byte[] unpackEntry(InputStream is, String name) {
      ByteArrayUnpacker action = new ByteArrayUnpacker();
      if (!handle(is, name, action))
        return null; // entry not found
      return action.getBytes();
    }
docs: Unpacks a single entry from a ZIP stream.
  
  @param is
  ZIP stream.
  @param name
  entry name.
  @return contents of the entry or <code>null</code> if it was not found.