package java.util;

/**
 * <p>
 * The root class from which all event state objects shall be derived.
 * <p>
 * All Events are constructed with a reference to the object, the "source", that is logically deemed
 * to be the object upon which the Event in question initially occurred upon.
 */
public class EventObject implements java.io.Serializable {

    /**
     * Constructs a prototypical Event.
     *
     * @param source
     *        The object on which the Event initially occurred.
     * @exception IllegalArgumentException
     *            if source is null.
     */
    public EventObject(Object source) {
        throw new RuntimeException();
    }

    /**
     * The object on which the Event initially occurred.
     *
     * @return The object on which the Event initially occurred.
     */
    public Object getSource() {
        throw new RuntimeException();
    }

    /**
     * Returns a String representation of this EventObject.
     *
     * @return A a String representation of this EventObject.
     */
    @Override
    public String toString() {
        throw new RuntimeException();
    }
}