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test/jdk/java/awt/Toolkit/Headless/AWTEventListener/AWTListener.java

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   1 /*
   2  * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */


  31   @run main/othervm -Djava.awt.headless=true AWTListener
  32 */
  33 
  34 /**
  35  * In a headless mode add a listener for container events.
  36  * Check if a single listener is still assigned to the Toolkit class.
  37  */
  38 
  39 import java.awt.*;
  40 import java.awt.event.*;
  41 import test.java.awt.regtesthelpers.Sysout;
  42 
  43 public class AWTListener {
  44     public static void main(String []s) {
  45         Toolkit toolkit = Toolkit.getDefaultToolkit();
  46 
  47         AWTEventListener orig = new AWTEventListener() {
  48                 public void eventDispatched(AWTEvent event) { }
  49             };
  50 
  51         Sysout.println("Test: listener to add = " +orig);
  52         toolkit.addAWTEventListener(orig, AWTEvent.CONTAINER_EVENT_MASK);
  53 
  54         for (AWTEventListener l: toolkit.getAWTEventListeners()){
  55             Sysout.println("Test: listener = " +l+" ");
  56         }
  57 
  58         if ( toolkit.getAWTEventListeners().length == 0 ) {
  59             throw new RuntimeException("Case 1. An empty array returned unexpectedly");
  60         }
  61 
  62         for (AWTEventListener l: toolkit.getAWTEventListeners(AWTEvent.CONTAINER_EVENT_MASK)){
  63             Sysout.println("Test: listener = " +l);
  64          }
  65 
  66         if ( toolkit.getAWTEventListeners(AWTEvent.CONTAINER_EVENT_MASK).length == 0 ) {
  67             throw new RuntimeException("Case 2. An empty array returned unexpectedly");
  68         }
  69         Sysout.println("Test PASSED");
  70     }
  71 }
   1 /*
   2  * Copyright (c) 2008, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */


  31   @run main/othervm -Djava.awt.headless=true AWTListener
  32 */
  33 
  34 /**
  35  * In a headless mode add a listener for container events.
  36  * Check if a single listener is still assigned to the Toolkit class.
  37  */
  38 
  39 import java.awt.*;
  40 import java.awt.event.*;
  41 import test.java.awt.regtesthelpers.Sysout;
  42 
  43 public class AWTListener {
  44     public static void main(String []s) {
  45         Toolkit toolkit = Toolkit.getDefaultToolkit();
  46 
  47         AWTEventListener orig = new AWTEventListener() {
  48                 public void eventDispatched(AWTEvent event) { }
  49             };
  50 
  51         System.out.println("Test: listener to add = " +orig);
  52         toolkit.addAWTEventListener(orig, AWTEvent.CONTAINER_EVENT_MASK);
  53 
  54         for (AWTEventListener l: toolkit.getAWTEventListeners()){
  55             System.out.println("Test: listener = " +l+" ");
  56         }
  57 
  58         if ( toolkit.getAWTEventListeners().length == 0 ) {
  59             throw new RuntimeException("Case 1. An empty array returned unexpectedly");
  60         }
  61 
  62         for (AWTEventListener l: toolkit.getAWTEventListeners(AWTEvent.CONTAINER_EVENT_MASK)){
  63             System.out.println("Test: listener = " +l);
  64          }
  65 
  66         if ( toolkit.getAWTEventListeners(AWTEvent.CONTAINER_EVENT_MASK).length == 0 ) {
  67             throw new RuntimeException("Case 2. An empty array returned unexpectedly");
  68         }
  69         System.out.println("Test PASSED");
  70     }
  71 }
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