// TODO: unload src libs when not used anymore,

// especially: old versions

static Map<File, ClassLoader> hotwire_srcLibsMap = syncMap();

static JavaXClassLoader hotwire_makeClassLoader_stickyAndSrcLibs(L<File> files) {

  new L<File> files2;

  new Map<S, ClassLoader> parents; // key = package/class name

  for (File f : files) {

    S libID = DiskSnippetCache_fileToLibID(f);

    if (libID != null && isStickyLibrary(libID)) {

      if (addLibrary(libID))

        print("Retaining sticky library " + libID);

    } else if (f != first(files) && isMarkedAsSrcLib(libID = isFile(f) ? loadTextFileFromZip(f, "progID") : null)) {

      ClassLoader c = hotwire_srcLibsMap.get(f);

      S jname = dropSuffix(".java", getJavaSrcNameOfSrcLib(libID));

      assertNempty(libID, jname);

      if (c == null) {

        print("Hotwiring src lib " + libID + " / " + f);

        Class cc = hotwireSpecialMainClass(libID, jname.replace("/", ".");

        setCreatorTo(cc, mc());

        c = cc.getClassLoader();

        hotwire_srcLibsMap.put(f, c);

      }

      S pkg = beforeSlash(jname);

      print("Linking src lib " + libID + " as " + pkg);

      parents.put(pkg, c);

    } else

      files2.add(f);

  }

  JavaXClassLoaderWithParents cl = new(null, files2, myClassLoader()); // progID is set later

  putAll(cl.parentMap, parents);

  ret cl;

}