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/*
* Copyright (c) 2003, 2018, 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 4828019
@summary Frame/Window deadlock
@author yan@sparc.spb.su: area=
@run applet NonEDT_GUI_Deadlock.html
*/
// Note there is no @ in front of test above. This is so that the
// harness will not mistake this file as a test file. It should
// only see the html file as a test file. (the harness runs all
// valid test files, so it would run this test twice if this file
// were valid as well as the html file.)
// Also, note the area= after Your Name in the author tag. Here, you
// should put which functional area the test falls in. See the
// AWT-core home page -> test areas and/or -> AWT team for a list of
// areas.
// Note also the 'AutomaticAppletTest.html' in the run tag. This should
// be changed to the name of the test.
/**
* NonEDT_GUI_Deadlock.java
*
* summary:
*/
import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;
//Automated tests should run as applet tests if possible because they
// get their environments cleaned up, including AWT threads, any
// test created threads, and any system resources used by the test
// such as file descriptors. (This is normally not a problem as
// main tests usually run in a separate VM, however on some platforms
// such as the Mac, separate VMs are not possible and non-applet
// tests will cause problems). Also, you don't have to worry about
// synchronisation stuff in Applet tests they way you do in main
// tests...
public class NonEDT_GUI_Deadlock extends Applet
{
//Declare things used in the test, like buttons and labels here
boolean bOK = false;
Thread badThread = null;
public void init()
{
}//End init()
public void start ()
{
//Get things going. Request focus, set size, et cetera
setSize (200,300);
setVisible(true);
validate();
final Frame theFrame = new Frame("Window test");
theFrame.setSize(240, 200);
Thread thKiller = new Thread() {
public void run() {
try {
Thread.sleep( 9000 );
}catch( Exception ex ) {
}
if( !bOK ) {
// oops,
//System.out.println("Deadlock!");
Runtime.getRuntime().halt(0);
}else{
//System.out.println("Passed ok.");
}
}
};
thKiller.setName("Killer thread");
thKiller.start();
Window w = new TestWindow(theFrame);
theFrame.toBack();
theFrame.setVisible(true);
theFrame.setLayout(new FlowLayout(FlowLayout.CENTER));
EventQueue.invokeLater(new Runnable() {
public void run() {
bOK = true;
}
});
}// start()
class TestWindow extends Window implements Runnable {
TestWindow(Frame f) {
super(f);
//setSize(240, 75);
setLocation(0, 75);
show();
toFront();
badThread = new Thread(this);
badThread.setName("Bad Thread");
badThread.start();
}
public void paint(Graphics g) {
g.drawString("Deadlock or no deadlock?",20,80);
}
public void run() {
long ts = System.currentTimeMillis();
while (true) {
if ((System.currentTimeMillis()-ts)>3000) {
this.setVisible( false );
dispose();
break;
}
toFront();
try {
Thread.sleep(80);
} catch (Exception e) {
}
}
}
}
public static void main(String args[]) {
NonEDT_GUI_Deadlock imt = new NonEDT_GUI_Deadlock();
imt.init();
imt.start();
}
}// class NonEDT_GUI_Deadlock
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