1 /*
2 * Copyright (c) 2019, 2020, 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.
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23 */
24
25 /*
26 * @test
27 * @summary A few edge cases where there's no class to be included in the dynamic archive.
28 * @requires vm.cds & !vm.graal.enabled
29 * @comment The test assumes that when "java -version" is executed, only a very limited number
30 * of classes are loaded, and all of those are loaded from the default shared archive.
31 *
32 * However, when graal is used as the JIT, many extra classes are loaded during VM start-up.
33 * Some of those are loaded dynamically from jrt:/. Some classes are also defined by
34 * LambdaMetafactory. This causes complexity that cannot be easily handled by this test.
35 *
36 * The VM code covered by this test can be sufficiently tested with C1/C2. So there's no need
37 * to bend over backwards to run this test with graal.
38 *
39 * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds /test/hotspot/jtreg/runtime/cds/appcds/dynamicArchive/test-classes
40 * @build StrConcatApp
41 * @build sun.hotspot.WhiteBox
42 * @run driver ClassFileInstaller -jar strConcatApp.jar StrConcatApp
43 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
44 * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. NoClassToArchive
45 */
46
47 import java.io.File;
48 import jdk.test.lib.process.OutputAnalyzer;
49 import jdk.test.lib.process.ProcessTools;
50
51 public class NoClassToArchive extends DynamicArchiveTestBase {
52 static final String warningMessage =
53 "There is no class to be included in the dynamic archive";
54 static final String classList = System.getProperty("test.classes") +
55 File.separator + "NoClassToArchive.list";
56 static final String appClass = "StrConcatApp";
57
58 public static void main(String[] args) throws Exception {
59 runTest(NoClassToArchive::testDefaultBase);
60 runTest(NoClassToArchive::testCustomBase);
61 }
62
63 // (1) Test with default base archive + top archive
64 static void testDefaultBase() throws Exception {
65 String topArchiveName = getNewArchiveName("top");
66 doTest(topArchiveName);
67 }
68
69 // (2) Test with custom base archive + top archive
70 static void testCustomBase() throws Exception {
71 String topArchiveName = getNewArchiveName("top2");
72 String baseArchiveName = getNewArchiveName("base");
73 doTestCustomBase(baseArchiveName, topArchiveName);
74 }
75
76 private static void checkWarning(OutputAnalyzer output) throws Exception {
77 if (output.firstMatch("bytes: [0-9]+ checksum: [0-9a-f]+") != null) {
78 // Patterns like this indicate that a class was not loaded from CDS archive:
79 // [info ][class,load] jdk.internal.module.DefaultRoots$$Lambda$1/0x00007f80c4512048 source: jdk.internal.module.DefaultRoots
80 // [debug][class,load] klass: 0x0000000800b77cf8 super: 0x0000000800007450 interfaces: 0x0000000800162538
81 // loader: [loader data: 0x00007f80f416a5b0 of 'bootstrap'] bytes: 403 checksum: 753e58aa
82 System.out.println("test skipped: this platform uses non-archived classes when running -version");
83 } else {
84 output.shouldContain(warningMessage);
85 }
86 }
87
88 private static void doTest(String topArchiveName) throws Exception {
89 dump(topArchiveName,
90 "-Xlog:cds",
91 "-Xlog:cds+dynamic=debug",
92 "-Xlog:class+load=trace",
93 "-version")
94 .assertNormalExit(output -> checkWarning(output));
95
96 dump(topArchiveName,
97 "-Xlog:cds",
98 "-Xlog:cds+dynamic=debug",
99 "-Xlog:class+load=trace",
100 "-help")
101 .assertNormalExit(output -> {
102 // some classes will be loaded from the java.base module
103 output.shouldContain("java.text.MessageFormat source: jrt:/java.base");
104 });
105 }
106
107 private static void doTestCustomBase(String baseArchiveName, String topArchiveName) throws Exception {
108 String appJar = ClassFileInstaller.getJarPath("strConcatApp.jar");
109 // dump class list by running the StrConcatApp
110 ProcessBuilder pb = ProcessTools.createTestJvm(
111 "-XX:DumpLoadedClassList=" + classList,
112 "-cp",
113 appJar,
114 appClass);
115 OutputAnalyzer output = TestCommon.executeAndLog(pb, "dumpClassList");
116 TestCommon.checkExecReturn(output, 0, true, "length = 0");
117
118 // create a custom base archive based on the class list
119 TestCommon.dumpBaseArchive(baseArchiveName, "-XX:SharedClassListFile=" + classList);
120
121 // create a dynamic archive with the custom base archive
122 // no class should be included in the dynamic archive
123 dump2(baseArchiveName, topArchiveName,
124 "-Xlog:cds",
125 "-Xlog:cds+dynamic=debug",
126 "-Xlog:class+load=trace",
127 "-version")
128 .assertNormalExit(out -> checkWarning(out));
129 }
130 }