1 /*
 2  * Copyright (c) 2020, 2022, 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 8249276
28  * @summary When dumping the CDS archive, try to lock some objects. These objects should be archived
29  *          without the locking bits in the markWord.
30  * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds
31  * @requires vm.cds
32  * @requires vm.jvmti
33  * @modules java.instrument
34  * @run driver LockDuringDump
35  */
36 
37 import jdk.test.lib.process.OutputAnalyzer;
38 import jdk.test.lib.helpers.ClassFileInstaller;
39 
40 public class LockDuringDump {
41     public static String appClasses[] = {
42         LockDuringDumpApp.class.getName(),
43     };
44     public static String agentClasses[] = {
45         LockDuringDumpAgent.class.getName(),
46     };
47 
48     private static final String MANIFEST =
49         "Manifest-Version: 1.0\nPremain-Class: LockDuringDumpAgent\n";
50 
51     public static void main(String[] args) throws Throwable {
52         String agentJar =
53             ClassFileInstaller.writeJar("LockDuringDumpAgent.jar",
54                                         ClassFileInstaller.Manifest.fromString(MANIFEST),
55                                         agentClasses);
56 
57         String appJar =
58             ClassFileInstaller.writeJar("LockDuringDumpApp.jar", appClasses);
59 
60         for (int i = 0; i < 2; i++) {
61             // i = 0 -- dump without agent
62             // i = 1 -- dump with agent
63 
64             String agentArg   = (i == 0) ? "-showversion" : "-javaagent:" + agentJar;
65             String agentArg2  = (i == 0) ? "-showversion" : "-XX:+AllowArchivingWithJavaAgent";
66 
67             OutputAnalyzer out =
68                 TestCommon.testDump(appJar, TestCommon.list(LockDuringDumpApp.class.getName()),
69                                     "-XX:+UnlockDiagnosticVMOptions",
70                                     agentArg, agentArg2);
71             if (i != 0 && !out.getStdout().contains("LockDuringDumpAgent timeout")) {
72                 out.shouldContain("Let's hold the lock on the literal string");
73             }
74 
75             TestCommon.run(
76                 "-cp", appJar,
77                 "-XX:+UnlockDiagnosticVMOptions", agentArg2,
78                 LockDuringDumpApp.class.getName())
79               .assertNormalExit("I am able to lock the literal string");
80         }
81     }
82 }
83