/*

  @test

  @bug 6738181

  @library ../../../regtesthelpers

  @build Sysout

  @summary Toolkit.getAWTEventListeners returns empty array

  @author andrei dmitriev: area=awt.headless

  @run main/othervm -Djava.awt.headless=true AWTListener

*/

/**

 * In a headless mode add a listener for container events.

 * Check if a single listener is still assigned to the Toolkit class.

 */

import java.awt.*;

import java.awt.event.*;

import test.java.awt.regtesthelpers.Sysout;

public class AWTListener {

    public static void main(String []s) {

        Toolkit toolkit = Toolkit.getDefaultToolkit();

        AWTEventListener orig = new AWTEventListener() {

                public void eventDispatched(AWTEvent event) { }

            };

        Sysout.println("Test: listener to add = " +orig);

        toolkit.addAWTEventListener(orig, AWTEvent.CONTAINER_EVENT_MASK);

        for (AWTEventListener l: toolkit.getAWTEventListeners()){

            Sysout.println("Test: listener = " +l+" ");

        }

        if ( toolkit.getAWTEventListeners().length == 0 ) {

            throw new RuntimeException("Case 1. An empty array returned unexpectedly");

        }

        for (AWTEventListener l: toolkit.getAWTEventListeners(AWTEvent.CONTAINER_EVENT_MASK)){

            Sysout.println("Test: listener = " +l);

         }

        if ( toolkit.getAWTEventListeners(AWTEvent.CONTAINER_EVENT_MASK).length == 0 ) {

            throw new RuntimeException("Case 2. An empty array returned unexpectedly");

        }

        Sysout.println("Test PASSED");

    }

}