1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* Copyright (c) 2002, 2025, 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 4683804
* @summary Tests that in ClipboardOwner.lostOwnership() Clipboard.getContents()
* returns actual contents of the clipboard and Clipboard.setContents()
* can set contents of the clipboard and its owner. The clipboard is
* the system clipboard and the owners of the clipboard are in
* 2 different processes.
* @key headful
* @library /test/lib
* @run main SystemClipboard2ProcTest
*/
import java.awt.Toolkit;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.ClipboardOwner;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
public class SystemClipboard2ProcTest {
public static void main(String[] args) throws Exception {
SystemClipboardOwner.run();
if (SystemClipboardOwner.failed) {
throw new RuntimeException("test failed: can not get actual " +
"contents of the clipboard or set owner of the clipboard");
} else {
System.err.println("test passed");
}
}
}
class SystemClipboardOwner implements ClipboardOwner {
static volatile boolean failed;
private static final Object LOCK = new Object();
private static final int CHAIN_LENGTH = 5;
private final static Clipboard clipboard =
Toolkit.getDefaultToolkit().getSystemClipboard();
private int m, id;
public SystemClipboardOwner(int m) { this.m = m; id = m; }
public void lostOwnership(Clipboard cb, Transferable contents) {
System.err.println(id + " lost clipboard ownership");
Transferable t = getClipboardContents(cb, null);
// for test passing if t.getTransferData() will throw an exception
String msg = "" + (m + 1);
try {
msg = (String)t.getTransferData(DataFlavor.stringFlavor);
} catch (Exception e) {
System.err.println(id + " can't getTransferData: " + e);
}
System.err.println(id + " Clipboard.getContents(): " + msg);
if (!msg.equals("" + (m + 1))) {
failed = true;
System.err.println("Clipboard.getContents() returned incorrect contents!");
}
m += 2;
if (m <= CHAIN_LENGTH) {
System.err.println(id + " Clipboard.setContents(): " + m);
setClipboardContents(cb, new StringSelection(m + ""), this);
}
if (m >= CHAIN_LENGTH) {
synchronized (LOCK) {
LOCK.notifyAll();
}
}
}
public static void run() throws Exception {
SystemClipboardOwner cbo1 = new SystemClipboardOwner(0);
System.err.println(cbo1.m + " Clipboard.setContents(): " + cbo1.m);
setClipboardContents(clipboard, new StringSelection(cbo1.m + ""),
cbo1);
ProcessBuilder pb = ProcessTools
.createTestJavaProcessBuilder(SystemClipboardOwner.class.getName());
Process process = ProcessTools.startProcess("Child", pb);
OutputAnalyzer outputAnalyzer = new OutputAnalyzer(process);
if (!process.waitFor(15, TimeUnit.SECONDS)) {
process.destroyForcibly();
throw new TimeoutException("Timed out waiting for Child");
}
outputAnalyzer.shouldHaveExitValue(0);
if (cbo1.m < CHAIN_LENGTH) {
failed = true;
System.err.println("chain of calls of lostOwnership() broken!");
}
}
public static void main(String[] args) throws InterruptedException {
SystemClipboardOwner cbo2 = new SystemClipboardOwner(1);
System.err.println(cbo2.m + " Clipboard.setContents(): " + cbo2.m);
synchronized (LOCK) {
setClipboardContents(clipboard, new StringSelection(cbo2.m + ""),
cbo2);
LOCK.wait();
}
}
private static void setClipboardContents(Clipboard cb,
Transferable contents,
ClipboardOwner owner) {
synchronized (cb) {
boolean set = false;
while (!set) {
try {
cb.setContents(contents, owner);
set = true;
} catch (IllegalStateException ise) {
try { Thread.sleep(100); }
catch (InterruptedException e) { e.printStackTrace(); }
}
}
}
}
private static Transferable getClipboardContents(Clipboard cb,
Object requestor) {
synchronized (cb) {
while (true) {
try {
Transferable t = cb.getContents(requestor);
return t;
} catch (IllegalStateException ise) {
try { Thread.sleep(100); }
catch (InterruptedException e) { e.printStackTrace(); }
}
}
}
}
}
|
