static JavaXClassLoader hotwire_makeClassLoader_stickyLibs(L<File> files) {
  new L<File> files2;
  for (File f : files) {
    S libID = DiskSnippetCache_fileToLibID(f);
    if (libID != null && isStickyLibrary(libID)) {
      addLibrary(libID);
      print("Retaining sticky library " + libID);
    } else
      files2.add(f);
  }

  ret new JavaXClassLoaderWithParent(null, files2, myClassLoader());
}