final class WaitTest {

    public static void main(String[] args) {
        new WaitTest().run();
    }

    void run() {
        class Closure {
            void call() {
                try {
                    wait(1000);
                    System.out.println("AHA!");
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }
        }

        Closure closure = new Closure();
        synchronized (this) {
            closure.call();
        }
    }
}