// compile JavaX source, load classes & return main class

  // src can be a snippet ID or actual source code

  // requires class _javax

  static Class<?> hotwire(String src) {

    try {

      try { _javax.androidContext = get(main.class, "androidContext"); } catch (Exception e) {}

      List<File> libraries = new ArrayList<File>();

      File srcDir = _javax.transpileMain(src, libraries);

      if (_javax.androidContext != null)

        return _javax.loadx2android(srcDir, src);

      File classesDir = _javax.TempDirMaker_make();

      String javacOutput = _javax.compileJava(srcDir, libraries, classesDir);

      System.out.println(javacOutput);

      URL[] urls = new URL[libraries.size()+1];

      urls[0] = classesDir.toURI().toURL();

      for (int i = 0; i < libraries.size(); i++)

        urls[i+1] = libraries.get(i).toURI().toURL();

      // make class loader

      URLClassLoader classLoader = new URLClassLoader(urls);

      // load & return main class

      Class<?> theClass = classLoader.loadClass("main");

      if (isSnippetID(src))

        try {

          set(theClass, "programID", src);

        } catch (Throwable e) {}

      return theClass;

    } catch (Exception e) {

      throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e);

    }

  }