1 /*
2 * Copyright (c) 2003, 2015, 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 /*
26 test
27 @bug 4828019
28 @summary Frame/Window deadlock
29 @author yan@sparc.spb.su: area=
30 @run applet NonEDT_GUI_Deadlock.html
31 */
32
33 // Note there is no @ in front of test above. This is so that the
34 // harness will not mistake this file as a test file. It should
35 // only see the html file as a test file. (the harness runs all
36 // valid test files, so it would run this test twice if this file
37 // were valid as well as the html file.)
38 // Also, note the area= after Your Name in the author tag. Here, you
39 // should put which functional area the test falls in. See the
40 // AWT-core home page -> test areas and/or -> AWT team for a list of
41 // areas.
42 // Note also the 'AutomaticAppletTest.html' in the run tag. This should
43 // be changed to the name of the test.
44
45
46 /**
47 * NonEDT_GUI_Deadlock.java
48 *
49 * summary:
50 */
51
52 import java.applet.Applet;
53 import java.awt.*;
54 import java.awt.event.*;
55 import java.net.*;
56 import java.io.*;
57
58
59 //Automated tests should run as applet tests if possible because they
60 // get their environments cleaned up, including AWT threads, any
61 // test created threads, and any system resources used by the test
62 // such as file descriptors. (This is normally not a problem as
63 // main tests usually run in a separate VM, however on some platforms
64 // such as the Mac, separate VMs are not possible and non-applet
65 // tests will cause problems). Also, you don't have to worry about
66 // synchronisation stuff in Applet tests they way you do in main
67 // tests...
68
69
70 public class NonEDT_GUI_Deadlock extends Applet
71 {
72 //Declare things used in the test, like buttons and labels here
73 boolean bOK = false;
74 Thread badThread = null;
75
76 public void init()
77 {
78 //Create instructions for the user here, as well as set up
79 // the environment -- set the layout manager, add buttons,
80 // etc.
81
82
83 String[] instructions =
84 {
85 "This is an AUTOMATIC test",
86 "simply wait until it is done"
87 };
88 Sysout.createDialog( );
89 Sysout.printInstructions( instructions );
90
91 }//End init()
92
93 public void start ()
94 {
95 //Get things going. Request focus, set size, et cetera
96
97 setSize (200,300);
98 setVisible(true);
99 validate();
100
101 final Frame theFrame = new Frame("Window test");
102 theFrame.setSize(240, 200);
103
104 Thread thKiller = new Thread() {
105 public void run() {
106 try {
107 Thread.sleep( 9000 );
108 }catch( Exception ex ) {
109 }
110 if( !bOK ) {
111 // oops,
112 //Sysout.println("Deadlock!");
113 Runtime.getRuntime().halt(0);
114 }else{
115 //Sysout.println("Passed ok.");
116 }
117 }
118 };
119 thKiller.setName("Killer thread");
120 thKiller.start();
121 Window w = new TestWindow(theFrame);
122 theFrame.toBack();
123 theFrame.setVisible(true);
124
125 theFrame.setLayout(new FlowLayout(FlowLayout.CENTER));
126 EventQueue.invokeLater(new Runnable() {
127 public void run() {
128 bOK = true;
129 }
130 });
131
132
133
134 }// start()
135 class TestWindow extends Window implements Runnable {
136
137 TestWindow(Frame f) {
138 super(f);
139
140 //setSize(240, 75);
141 setLocation(0, 75);
142
143 show();
144 toFront();
145
146 badThread = new Thread(this);
147 badThread.setName("Bad Thread");
148 badThread.start();
149
150 }
151
152 public void paint(Graphics g) {
153 g.drawString("Deadlock or no deadlock?",20,80);
154 }
155
156 public void run() {
157
158 long ts = System.currentTimeMillis();
159
160 while (true) {
161 if ((System.currentTimeMillis()-ts)>3000) {
162 this.setVisible( false );
163 dispose();
164 break;
165 }
166
167 toFront();
168 try {
169 Thread.sleep(80);
170 } catch (Exception e) {
171 }
172 }
173 }
174 }
175
176
177
178 public static void main(String args[]) {
179 NonEDT_GUI_Deadlock imt = new NonEDT_GUI_Deadlock();
180 imt.init();
181 imt.start();
182 }
183
184
185 }// class NonEDT_GUI_Deadlock
186
187
188 /****************************************************
189 Standard Test Machinery
190 DO NOT modify anything below -- it's a standard
191 chunk of code whose purpose is to make user
192 interaction uniform, and thereby make it simpler
193 to read and understand someone else's test.
194 ****************************************************/
195
196 /**
197 This is part of the standard test machinery.
198 It creates a dialog (with the instructions), and is the interface
199 for sending text messages to the user.
200 To print the instructions, send an array of strings to Sysout.createDialog
201 WithInstructions method. Put one line of instructions per array entry.
202 To display a message for the tester to see, simply call Sysout.println
203 with the string to be displayed.
204 This mimics System.out.println but works within the test harness as well
205 as standalone.
206 */
207
208 class Sysout
209 {
210 private static TestDialog dialog;
211
212 public static void createDialogWithInstructions( String[] instructions )
213 {
214 dialog = new TestDialog( new Frame(), "Instructions" );
215 dialog.printInstructions( instructions );
216 dialog.setVisible(true);
217 println( "Any messages for the tester will display here." );
218 }
219
220 public static void createDialog( )
221 {
222 dialog = new TestDialog( new Frame(), "Instructions" );
223 String[] defInstr = { "Instructions will appear here. ", "" } ;
224 dialog.printInstructions( defInstr );
225 dialog.setVisible(true);
226 println( "Any messages for the tester will display here." );
227 }
228
229
230 public static void printInstructions( String[] instructions )
231 {
232 dialog.printInstructions( instructions );
233 }
234
235
236 public static void println( String messageIn )
237 {
238 dialog.displayMessage( messageIn );
239 }
240
241 }// Sysout class
242
243 /**
244 This is part of the standard test machinery. It provides a place for the
245 test instructions to be displayed, and a place for interactive messages
246 to the user to be displayed.
247 To have the test instructions displayed, see Sysout.
248 To have a message to the user be displayed, see Sysout.
249 Do not call anything in this dialog directly.
250 */
251 class TestDialog extends Dialog
252 {
253
254 TextArea instructionsText;
255 TextArea messageText;
256 int maxStringLength = 80;
257
258 //DO NOT call this directly, go through Sysout
259 public TestDialog( Frame frame, String name )
260 {
261 super( frame, name );
262 int scrollBoth = TextArea.SCROLLBARS_BOTH;
263 instructionsText = new TextArea( "", 15, maxStringLength, scrollBoth );
264 add( "North", instructionsText );
265
266 messageText = new TextArea( "", 5, maxStringLength, scrollBoth );
267 add("Center", messageText);
268
269 pack();
270
271 show();
272 }// TestDialog()
273
274 //DO NOT call this directly, go through Sysout
275 public void printInstructions( String[] instructions )
276 {
277 //Clear out any current instructions
278 instructionsText.setText( "" );
279
280 //Go down array of instruction strings
281
282 String printStr, remainingStr;
283 for( int i=0; i < instructions.length; i++ )
284 {
285 //chop up each into pieces maxSringLength long
286 remainingStr = instructions[ i ];
287 while( remainingStr.length() > 0 )
288 {
289 //if longer than max then chop off first max chars to print
290 if( remainingStr.length() >= maxStringLength )
291 {
292 //Try to chop on a word boundary
293 int posOfSpace = remainingStr.
294 lastIndexOf( ' ', maxStringLength - 1 );
295
296 if( posOfSpace <= 0 ) posOfSpace = maxStringLength - 1;
297
298 printStr = remainingStr.substring( 0, posOfSpace + 1 );
299 remainingStr = remainingStr.substring( posOfSpace + 1 );
300 }
301 //else just print
302 else
303 {
304 printStr = remainingStr;
305 remainingStr = "";
306 }
307
308 instructionsText.append( printStr + "\n" );
309
310 }// while
311
312 }// for
313
314 }//printInstructions()
315
316 //DO NOT call this directly, go through Sysout
317 public void displayMessage( String messageIn )
318 {
319 messageText.append( messageIn + "\n" );
320 System.out.println(messageIn);
321 }
322
323 }// TestDialog class