Class<?> sepFwrC = sepLoader.loadClass(MyFinalizableWeakReference.class.getName());
    Constructor<?> sepFwrCons = sepFwrC.getConstructor(Object.class, sepFrqC);
    // The object that we will wrap in FinalizableWeakReference is a Stopwatch.
    Class<?> sepStopwatchC = sepLoader.loadClass(Stopwatch.class.getName());
    assertSame(sepLoader, sepStopwatchC.getClassLoader());

    }

    @Override
    public String prompt(String message, List<String> possibleValues, String defaultReply) throws PrompterException {
        try {
            Class<?> clazz = container.getContainerRealm().loadClass(PROMPTER_CLASS);
            Object instance = container.lookup(clazz);
            Method method = clazz.getMethod("prompt", String.class, List.class, String.class);

  }

  static class DecoupledClassLoader extends URLClassLoader {

    public DecoupledClassLoader(URL[] urls) {
      super(urls);
    }

    @Override
    protected synchronized Class<?> loadClass(String name, boolean resolve)
        throws ClassNotFoundException {
      // Force Finalizer to load from this class loader, not its parent.
      if (name.equals(Finalizer.class.getName())) {

        final ClassLoader tccl = Thread.currentThread().getContextClassLoader();
        if (tccl != null) {
            try {
                return tccl.loadClass(name);
            } catch (final Exception e) {
                // drop through...
            } catch (final LinkageError e) {
                // drop through...
            }
        }