code: public static boolean transformEntries(final File zip, final ZipEntryTransformerEntry[] entries) {
      return operateInPlace(zip, new InPlaceAction() {
        public boolean act(File tmpFile) {
          return transformEntries(zip, entries, tmpFile);
        }
      });
    }
docs: Changes an existing ZIP file: transforms a given entries in it.
  
  @param zip
  an existing ZIP file (only read).
  @param entries
  ZIP entry transformers.
  @return <code>true</code> if the entry was replaced.