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Java example source code file (AWTListener.java)
The AWTListener.java Java example source code/* * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* @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"); } } Other Java examples (source code examples)Here is a short list of links related to this Java AWTListener.java source code file: |
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