static void zip2zip_exceptManifest2(File inZip, ZipOutputStream outZip, Set<S> filesWritten) ctex {
  ZipFile zipFile = new ZipFile(inZip);
  try {
    Enumeration entries = zipFile.entries();
    while (entries.hasMoreElements()) {
      ZipEntry entry = (ZipEntry) entries.nextElement();
      if (entry.isDirectory()) continue;
      //if (eq(entry.getName(), "META-INF/MANIFEST.MF")) continue;
      if (startsWith(entry.getName(), "META-INF/")) continue;
      
      if (!filesWritten.add(entry.getName())) continue;
      outZip.putNextEntry(new ZipEntry(entry.getName()));
      copyStreamAndCloseInput(zipFile.getInputStream(entry), outZip);
    }
  } finally {
    zipFile.close();
  }
}

Began life as a copy of #1011503