static Class<?> hotwire(String src) {
  if (isAndroid()) {
    Class j = getJavaX();
    synchronized(j) { // hopefully this goes well...
      List<File> libraries = new ArrayList<File>();
      File srcDir = (File) call(j, "transpileMain", src, libraries);
      if (srcDir == null)
        fail("transpileMain returned null (src=" + quote(src) + ")");
    
      Object androidContext = get(j, "androidContext");
      return (Class) call(j, "loadx2android", srcDir, src);
    }
  }
    
  ret hotwire_overInternalBot(src);
}

Began life as a copy of #1000631