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. 22 * 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 }