/* * Copyright (c) 2004, 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 4996503 @summary REGRESSION: NotSerializableException: javax.swing.plaf.basic.BasicComboPopup+1 @key headful */ import java.io.ByteArrayOutputStream; import java.io.ObjectOutputStream; import java.io.IOException; import java.awt.Dimension; import java.awt.Point; import java.awt.Robot; import java.awt.event.KeyEvent; import java.awt.event.InputEvent; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.SwingUtilities; public class bug4996503 { static volatile JFrame frame = null; static volatile JComboBox comboBox = null; public static void main(String[] args) throws Exception { try { SwingUtilities.invokeAndWait(() -> { frame = new JFrame("bug4996503"); String[] items = { "item0", "item1", "item2" }; comboBox = new JComboBox(items); frame.add(comboBox); frame.pack(); frame.validate(); frame.setLocationRelativeTo(null); frame.setVisible(true); }); Robot robot = new Robot(); robot.setAutoDelay(50); robot.delay(1000); Point p = comboBox.getLocationOnScreen(); Dimension size = comboBox.getSize(); p.x += size.width / 2; p.y += size.height / 2; robot.mouseMove(p.x, p.y); robot.mousePress(InputEvent.BUTTON1_DOWN_MASK); robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK); robot.keyPress(KeyEvent.VK_ENTER); robot.keyRelease(KeyEvent.VK_ENTER); ObjectOutputStream out = null; ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); try { out = new ObjectOutputStream(byteStream); } catch (IOException e) {} if (out != null) { try { out.writeObject(comboBox); } catch (Exception e) { System.out.println(e); throw new Error("Serialization exception. Test failed."); } } } finally { if (frame != null) { SwingUtilities.invokeAndWait(frame::dispose); } } } }