Hell Device

interface NewRunnable<T>
{
    void buz(T argument);
}

abstract class CrazyDevice<T>
{
    private final NewRunnable<CrazyDevice<T>> delegate;
    CrazyDevice(final NewRunnable<CrazyDevice<T>> code)
    {
        assert null != code;
        delegate = code;
    }

    void work()
    {
        delegate.buz(this);
    }

    abstract T cast();
}

class HellPortal extends CrazyDevice<HellPortal>
{
    private final String name;
    HellPortal(String name)
    {
        super(new NewRunnable<CrazyDevice<HellPortal>>()
        {
            @Override
            public void buz(CrazyDevice<HellPortal> key)
            {
                key.cast().open();
            }
        });
        this.name = name;
    }

    @Override
    HellPortal cast()
    {
        return this;
    }

    void open()
    {
        System.out.println("The portal '" + name + "' is opened.");
    }
}