Launcher$ExtClassLoader.java getExtDir method

Launcher$ExtClassLoader.java

    static class ExtClassLoader extends URLClassLoader {

        public static ExtClassLoader getExtClassLoader() throws IOException
        {
            final File[] dirs = getExtDirs();
          ...
        }
      
                private static File[] getExtDirs() {
            String s = System.getProperty("java.ext.dirs");
            File[] dirs;
            if (s != null) {
                StringTokenizer st =
                    new StringTokenizer(s, File.pathSeparator);
                int count = st.countTokens();
                dirs = new File[count];
                for (int i = 0; i < count; i++) {
                    dirs[i] = new File(st.nextToken());
                }
            } else {
                dirs = new File[0];
            }
            return dirs;
        }
...