jdk-24/jdk/test/com/sun/jmx/remote/NotificationMarshalVersions/Server/Ste.java

import javax.management.NotificationBroadcasterSupport;

public class Ste extends NotificationBroadcasterSupport implements SteMBean {
    private long count = 0;

    public void foo() {
        sendNotification(new TestNotification("test", this, count++));
    }
}