1 /*

     2  * Copyright (c) 2013, 2016, 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 @summary JVM crash if the frame is disposed in DropTargetListener

    26  * @key headful

    27  * @author Petr Pchelko

    28  * @library ../../regtesthelpers

    29  * @build Util

    30  * @compile DisposeFrameOnDragTest.java

    31  * @run main/othervm DisposeFrameOnDragTest

    32  */

    33 import java.awt.AWTException;

    34 import java.awt.Point;

    35 import java.awt.Robot;

    36 import java.awt.dnd.DropTargetAdapter;

    37 import java.awt.dnd.DropTargetDragEvent;

    38 import java.awt.dnd.DropTargetDropEvent;

    39 import java.awt.event.InputEvent;

    40 import java.lang.reflect.InvocationTargetException;

    41 import java.util.TooManyListenersException;

    42 import javax.swing.JFrame;

    43 import javax.swing.JTextArea;

    44 import javax.swing.SwingUtilities;

    45 import test.java.awt.regtesthelpers.Util;

    46 

    47 public class DisposeFrameOnDragTest {

    48 

    49     private static JTextArea textArea;

    50 

    51     public static void main(String[] args) throws Throwable {

    52 

    53         SwingUtilities.invokeAndWait(new Runnable() {

    54             @Override

    55             public void run() {

    56                 constructTestUI();

    57             }

    58         });

    59 

    60         Robot testRobot = null;

    61         try {

    62             testRobot = new Robot();

    63         } catch(AWTException ex) {

    64             throw new RuntimeException("Error while creating Robot");

    65         }

    66 

    67         Util.waitForIdle(testRobot);

    68 

    69         Point loc = textArea.getLocationOnScreen();

    70         Util.drag(testRobot,

    71                 new Point((int) loc.x + 3, (int) loc.y + 3),

    72                 new Point((int) loc.x + 40, (int) loc.y + 40),

    73                 InputEvent.BUTTON1_MASK);

    74 

    75         Util.waitForIdle(testRobot);

    76 

    77         testRobot.delay(200);

    78     }

    79 

    80     private static void constructTestUI() {

    81         final JFrame frame = new JFrame("Test frame");

    82         textArea = new JTextArea("Drag Me!");

    83         try {

    84             textArea.getDropTarget().addDropTargetListener(new DropTargetAdapter() {

    85                 @Override

    86                 public void drop(DropTargetDropEvent dtde) {

    87                     //IGNORE

    88                 }

    89 

    90                 @Override

    91                 public void dragOver(DropTargetDragEvent dtde) {

    92                     frame.dispose();

    93                 }

    94             });

    95         } catch (TooManyListenersException ex) {

    96             throw new RuntimeException(ex);

    97         }

    98         textArea.setSize(100, 100);

    99         textArea.setDragEnabled(true);

   100         textArea.select(0, textArea.getText().length());

   101         frame.add(textArea);

   102         frame.setBounds(100, 100, 100, 100);

   103         frame.setVisible(true);

   104     }

   105 }