1 /*
2 * Copyright (c) 2014, 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 4051487 4145670 8062021
28 @summary Tests that disposing of an empty Frame or a Frame with a MenuBar
29 while it is being created does not crash the VM.
30 @author dpm area=Threads
31 @run applet/timeout=7200 DisposeStressTest.html
32 */
33
34 // Note there is no @ in front of test above. This is so that the
35 // harness will not mistake this file as a test file. It should
36 // only see the html file as a test file. (the harness runs all
37 // valid test files, so it would run this test twice if this file
38 // were valid as well as the html file.)
39 // Also, note the area= after Your Name in the author tag. Here, you
40 // should put which functional area the test falls in. See the
41 // AWT-core home page -> test areas and/or -> AWT team for a list of
42 // areas.
43 // Note also the 'DisposeStressTest.html' in the run tag. This should
44 // be changed to the name of the test.
45
46
47 /**
48 * DisposeStressTest.java
49 *
50 * summary:
51 */
52
53 import java.applet.Applet;
54 import java.awt.*;
55
56
57 //Automated tests should run as applet tests if possible because they
58 // get their environments cleaned up, including AWT threads, any
59 // test created threads, and any system resources used by the test
60 // such as file descriptors. (This is normally not a problem as
61 // main tests usually run in a separate VM, however on some platforms
62 // such as the Mac, separate VMs are not possible and non-applet
63 // tests will cause problems). Also, you don't have to worry about
64 // synchronisation stuff in Applet tests they way you do in main
65 // tests...
66
67
68 public class DisposeStressTest extends Applet
69 {
70 //Declare things used in the test, like buttons and labels here
71
72 public void init()
73 {
74 //Create instructions for the user here, as well as set up
75 // the environment -- set the layout manager, add buttons,
76 // etc.
77
78 this.setLayout (new BorderLayout ());
79
80 String[] instructions =
81 {
82 "This is an AUTOMATIC test",
83 "simply wait until it is done"
84 };
85 Sysout.createDialog( );
86 Sysout.printInstructions( instructions );
87
88 }//End init()
89
90 public void start ()
91 {
92 for (int i = 0; i < 1000; i++) {
93 Frame f = new Frame();
94 f.setBounds(10, 10, 10, 10);
95 f.show();
96 f.dispose();
97
98 Frame f2 = new Frame();
99 f2.setBounds(10, 10, 100, 100);
100 MenuBar bar = new MenuBar();
101 Menu menu = new Menu();
102 menu.add(new MenuItem("foo"));
103 bar.add(menu);
104 f2.setMenuBar(bar);
105 f2.show();
106 f2.dispose();
107 }
108 }// start()
109
110 }// class DisposeStressTest
111
112
113 /****************************************************
114 Standard Test Machinery
115 DO NOT modify anything below -- it's a standard
116 chunk of code whose purpose is to make user
117 interaction uniform, and thereby make it simpler
118 to read and understand someone else's test.
119 ****************************************************/
120
121 /**
122 This is part of the standard test machinery.
123 It creates a dialog (with the instructions), and is the interface
124 for sending text messages to the user.
125 To print the instructions, send an array of strings to Sysout.createDialog
126 WithInstructions method. Put one line of instructions per array entry.
127 To display a message for the tester to see, simply call Sysout.println
128 with the string to be displayed.
129 This mimics System.out.println but works within the test harness as well
130 as standalone.
131 */
132
133 class Sysout
134 {
135 private static TestDialog dialog;
136
137 public static void createDialogWithInstructions( String[] instructions )
138 {
139 dialog = new TestDialog( new Frame(), "Instructions" );
140 dialog.printInstructions( instructions );
141 dialog.show();
142 println( "Any messages for the tester will display here." );
143 }
144
145 public static void createDialog( )
146 {
147 dialog = new TestDialog( new Frame(), "Instructions" );
148 String[] defInstr = { "Instructions will appear here. ", "" } ;
149 dialog.printInstructions( defInstr );
150 dialog.show();
151 println( "Any messages for the tester will display here." );
152 }
153
154
155 public static void printInstructions( String[] instructions )
156 {
157 dialog.printInstructions( instructions );
158 }
159
160
161 public static void println( String messageIn )
162 {
163 dialog.displayMessage( messageIn );
164 }
165
166 }// Sysout class
167
168 /**
169 This is part of the standard test machinery. It provides a place for the
170 test instructions to be displayed, and a place for interactive messages
171 to the user to be displayed.
172 To have the test instructions displayed, see Sysout.
173 To have a message to the user be displayed, see Sysout.
174 Do not call anything in this dialog directly.
175 */
176 class TestDialog extends Dialog
177 {
178
179 TextArea instructionsText;
180 TextArea messageText;
181 int maxStringLength = 80;
182
183 //DO NOT call this directly, go through Sysout
184 public TestDialog( Frame frame, String name )
185 {
186 super( frame, name );
187 int scrollBoth = TextArea.SCROLLBARS_BOTH;
188 instructionsText = new TextArea( "", 15, maxStringLength, scrollBoth );
189 add( "North", instructionsText );
190
191 messageText = new TextArea( "", 5, maxStringLength, scrollBoth );
192 add("South", messageText);
193
194 pack();
195
196 show();
197 }// TestDialog()
198
199 //DO NOT call this directly, go through Sysout
200 public void printInstructions( String[] instructions )
201 {
202 //Clear out any current instructions
203 instructionsText.setText( "" );
204
205 //Go down array of instruction strings
206
207 String printStr, remainingStr;
208 for( int i=0; i < instructions.length; i++ )
209 {
210 //chop up each into pieces maxSringLength long
211 remainingStr = instructions[ i ];
212 while( remainingStr.length() > 0 )
213 {
214 //if longer than max then chop off first max chars to print
215 if( remainingStr.length() >= maxStringLength )
216 {
217 //Try to chop on a word boundary
218 int posOfSpace = remainingStr.
219 lastIndexOf( ' ', maxStringLength - 1 );
220
221 if( posOfSpace <= 0 ) posOfSpace = maxStringLength - 1;
222
223 printStr = remainingStr.substring( 0, posOfSpace + 1 );
224 remainingStr = remainingStr.substring( posOfSpace + 1 );
225 }
226 //else just print
227 else
228 {
229 printStr = remainingStr;
230 remainingStr = "";
231 }
232
233 instructionsText.append( printStr + "\n" );
234
235 }// while
236
237 }// for
238
239 }//printInstructions()
240
241 //DO NOT call this directly, go through Sysout
242 public void displayMessage( String messageIn )
243 {
244 messageText.append( messageIn + "\n" );
245 }
246
247 }// TestDialog class