1 /* 2 * Copyright (c) 2013, 2020, 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 */ 23 24 /** 25 * @test 26 * @summary JVM crash if the frame is disposed in DropTargetListener 27 * @bug 8252470 28 * @key headful 29 * @author Petr Pchelko 30 * @library ../../regtesthelpers 31 * @build Util 32 * @compile DisposeFrameOnDragTest.java 33 * @run main/othervm DisposeFrameOnDragTest 34 */ 35 import java.awt.AWTException; 36 import java.awt.Point; 37 import java.awt.Robot; 38 import java.awt.dnd.DropTargetAdapter; 39 import java.awt.dnd.DropTargetDragEvent; 40 import java.awt.dnd.DropTargetDropEvent; 41 import java.awt.event.InputEvent; 42 import java.lang.reflect.InvocationTargetException; 43 import java.util.TooManyListenersException; 44 import javax.swing.JFrame; 45 import javax.swing.JTextArea; 46 import javax.swing.SwingUtilities; 47 import test.java.awt.regtesthelpers.Util; 48 49 public class DisposeFrameOnDragTest { 50 51 private static JTextArea textArea; 52 53 public static void main(String[] args) throws Throwable { 54 55 SwingUtilities.invokeAndWait(new Runnable() { 56 @Override 57 public void run() { 58 constructTestUI(); 59 } 60 }); 61 62 Robot testRobot = null; 63 try { 64 testRobot = new Robot(); 65 } catch(AWTException ex) { 66 throw new RuntimeException("Error while creating Robot"); 67 } 68 69 Util.waitForIdle(testRobot); 70 71 Point loc = textArea.getLocationOnScreen(); 72 Util.drag(testRobot, 73 new Point((int) loc.x + 3, (int) loc.y + 3), 74 new Point((int) loc.x + 40, (int) loc.y + 40), 75 InputEvent.BUTTON1_MASK); 76 77 Util.waitForIdle(testRobot); 78 79 testRobot.delay(200); 80 } 81 82 private static void constructTestUI() { 83 final JFrame frame = new JFrame("Test frame"); 84 textArea = new JTextArea("Drag Me!"); 85 try { 86 textArea.getDropTarget().addDropTargetListener(new DropTargetAdapter() { 87 @Override 88 public void drop(DropTargetDropEvent dtde) { 89 //IGNORE 90 } 91 92 @Override 93 public void dragOver(DropTargetDragEvent dtde) { 94 frame.dispose(); 95 } 96 }); 97 } catch (TooManyListenersException ex) { 98 throw new RuntimeException(ex); 99 } 100 textArea.setSize(100, 100); 101 textArea.setDragEnabled(true); 102 textArea.select(0, textArea.getText().length()); 103 frame.add(textArea); 104 frame.setBounds(100, 100, 100, 100); 105 frame.setVisible(true); 106 } 107 }