/* * Copyright (c) 2000, 2023, 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 4267393 @summary Ensures minimal amount of paints @key headful @run main ComponentResizedTest */ import java.awt.EventQueue; import java.awt.Frame; import java.awt.Graphics; import java.awt.event.ComponentEvent; import java.lang.reflect.InvocationTargetException; public class ComponentResizedTest extends Frame { volatile int paintCount = 0; public static void main(String[] args) throws InterruptedException, InvocationTargetException { ComponentResizedTest componentResizedTest = new ComponentResizedTest(); EventQueue.invokeAndWait(componentResizedTest::init); componentResizedTest.start(); if (componentResizedTest != null) EventQueue.invokeAndWait(() -> componentResizedTest.dispose()); } public void paint(Graphics g) { System.out.println("Paint called"); ++paintCount; } public void init() { setTitle("ComponentResizedTest"); setSize(100, 100); setLocationRelativeTo(null); setVisible(true); } public void start () throws InterruptedException { Thread.sleep(1000); paintCount = 0; dispatchEvent(new ComponentEvent(this, ComponentEvent.COMPONENT_RESIZED)); Thread.sleep(1000); if (paintCount > 0) { throw new RuntimeException("ComponentResizedTest failed. " + "Paint called."); } } }