GetContentsInterruptedTest.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2001, 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26import java.awt.*;
27import java.awt.datatransfer.Clipboard;
28import java.awt.datatransfer.ClipboardOwner;
29import java.awt.datatransfer.StringSelection;
30import java.awt.datatransfer.Transferable;
31import java.io.File;
32import java.io.IOException;
33import java.io.InputStream;
34
35/*
36 * @test
37 * @key headful
38 * @bug 4532299 4648733
39 * @summary Tests that getting clipboard contents on the interrupted thread will
40 *          not cause deadlock.Also check that lostOwnership event occurs while
41 *          cross-JVM interaction
42 * @author Kanishk Jethi
43 * @run main GetContentsInterruptedTest
44 */
45
46public class GetContentsInterruptedTest implements ClipboardOwner {
47
48    final Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
49    final Transferable transferable = new StringSelection("TEXT");
50    private final Object o = new Object();
51
52    public static void main(String args[]) throws Exception {
53        if (System.getProperty("os.name").startsWith("Mac")) {
54            System.out.println("This tests should not be run on OS X. " +
55                    "See CR 7124344 for more info");
56        } else {
57            boolean subTestFlag = false;
58            for (String arg : args) {
59                if (arg.indexOf("SubTest") != -1)
60                    subTestFlag = true;
61            }
62
63            if (!subTestFlag) {
64                new GetContentsInterruptedTest().performTest();
65            } else {
66                new GetContentsInterruptedTest().execute();
67            }
68        }
69    }
70
71    private void performTest() throws Exception {
72        int retCode;
73        String javaPath = System.getProperty("java.home", "");
74        String javaClasspath = System.getProperty("java.class.path", ".");
75        String command = javaPath + File.separator + "bin" +
76            File.separator + "java -classpath " + javaClasspath +
77            " GetContentsInterruptedTest SubTest";
78        System.out.println(command);
79        boolean processExit = false;
80
81        clipboard.setContents(transferable, this);
82        Process process = Runtime.getRuntime().exec(command);
83        synchronized (o) {
84            o.wait(10000);
85        }
86
87        try {
88            retCode = process.exitValue();
89            processExit = true;
90        }catch (IllegalThreadStateException e){
91            throw new RuntimeException(e);
92        }
93        System.out.println("[RESULT] : " +
94                "The sub process has cleanly exited : PASS");
95
96        System.out.println("[RESULT] : Child returned: " + retCode );
97
98        InputStream errorStream = process.getErrorStream();
99        System.out.println("========= Child process stderr ========");
100        dumpStream(errorStream);
101        System.out.println("=======================================");
102
103        InputStream processInputStream = process.getInputStream();
104        System.out.println("========= Child process output ========");
105        dumpStream(processInputStream);
106        System.out.println("=======================================");
107
108        if (!processExit) {
109            process.destroy();
110            throw new RuntimeException("[RESULT] : " +
111                    "The sub process has not exited : FAIL");
112        }
113    }
114
115    /*
116     * execute is run through another instance of this class.
117     * it acquires the systemClipboard through another JVM.
118     */
119    public void execute() {
120        System.out.println("Hello world");
121        final ClipboardOwner clipboardOwner = new ClipboardOwner() {
122            public void lostOwnership(Clipboard clipboard, Transferable contents) {
123                System.exit(0);
124            }
125        };
126        clipboard.setContents(transferable, clipboardOwner);
127        synchronized (o) {
128            try {
129                o.wait();
130            } catch (InterruptedException ie) {
131                ie.printStackTrace();
132            }
133        }
134    }
135
136    public void dumpStream(InputStream in) throws IOException {
137        String tempString;
138        int count = in.available();
139        while (count > 0) {
140            byte[] b = new byte[count];
141            in.read(b);
142            tempString = new String(b);
143            if (tempString.indexOf("Exception") != -1 )
144                throw new RuntimeException("[RESULT] :" +
145                        " Exception in child process : FAIL");
146            System.out.println(tempString);
147            count = in.available();
148        }
149    }
150
151    public void lostOwnership(Clipboard clip, Transferable contents) {
152        new Thread(() -> {
153            try {
154                Thread.sleep(3000);
155            } catch (InterruptedException e) {
156                throw new RuntimeException(e);
157            }
158            clipboard.getContents(null);
159            Thread.currentThread().interrupt();
160            clipboard.getContents(null);
161            clipboard.setContents(transferable, null);
162        }).start();
163    }
164}
165
166