InputEvent.getWhen() returns with wrong event's timestamp

When calling getWhen() method it returns the wrong time. Look at times below.

Current Time = Fri Sep 25 16:06:16 EDT 1998
GetWhen Time = Tue Jan 06 18:17:56 EST 1970


Test Case:

***** Main.java *****

import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class Main extends Frame {

  public Main() {
    setTitle("getWhen Example");
    setSize(500,100);
    this.enableEvents(AWTEvent.MOUSE_EVENT_MASK);
    setVisible(true);
  }

  protected void processEvent(AWTEvent evt) {

    if (evt instanceof InputEvent) {
      long currentTime = (new Date()).getTime();
      long eventTime = ((InputEvent)evt).getWhen();

      System.out.println("Current Time = " + new Date(currentTime));
      System.out.println("GetWhen Time = " + new Date(eventTime));
    }
  }

  public static void main (String args[]) {
    new Main();
  }
}