1 /* 2 * Copyright (c) 2014, 2019, 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 If -Djava.system.class.loader=xxx is specified in command-line, disable archived non-system classes 28 * @requires vm.cds 29 * @library /test/lib 30 * @compile test-classes/TestClassLoader.java 31 * @compile test-classes/ReportMyLoader.java 32 * @compile test-classes/TrySwitchMyLoader.java 33 * @run driver SpecifySysLoaderProp 34 */ 35 36 import java.io.*; 37 import jdk.test.lib.process.OutputAnalyzer; 38 39 public class SpecifySysLoaderProp { 40 41 public static void main(String[] args) throws Exception { 42 JarBuilder.build("sysloader", "TestClassLoader", "ReportMyLoader", "TrySwitchMyLoader"); 43 44 String jarFileName = "sysloader.jar"; 45 String appJar = TestCommon.getTestJar(jarFileName); 46 TestCommon.testDump(appJar, TestCommon.list("ReportMyLoader")); 47 String warning = "VM warning: Archived non-system classes are disabled because the java.system.class.loader property is specified"; 48 49 50 // (0) Baseline. Do not specify -Djava.system.class.loader 51 // The test class should be loaded from archive 52 TestCommon.run( 53 "-verbose:class", 54 "-cp", appJar, 55 "ReportMyLoader") 56 .assertNormalExit("[class,load] ReportMyLoader source: shared objects file", 57 "ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@"); 58 59 // (1) Try to execute the archive with -Djava.system.class.loader=no.such.Klass, 60 // it should fail 61 TestCommon.run( 62 "-cp", appJar, 63 "-Djava.system.class.loader=no.such.Klass", 64 "ReportMyLoader") 65 .assertAbnormalExit(output -> { 66 output.shouldContain(warning); 67 output.shouldContain("ClassNotFoundException: no.such.Klass"); 68 }); 69 70 // (2) Try to execute the archive with -Djava.system.class.loader=TestClassLoader, 71 // it should run, but archived non-system classes should be disabled 72 TestCommon.run( 73 "-verbose:class", 74 "-cp", appJar, 75 "-Djava.system.class.loader=TestClassLoader", 76 "ReportMyLoader") 77 .assertNormalExit("ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@", //<-this is still printed because TestClassLoader simply delegates to Launcher$AppLoader, but ... 78 "TestClassLoader.called = true", //<-but this proves that TestClassLoader was indeed called. 79 "TestClassLoader: loadClass(\"ReportMyLoader\",") //<- this also proves that TestClassLoader was indeed called. 80 .assertNormalExit(output -> { 81 output.shouldMatch(".class,load. TestClassLoader source: file:"); 82 output.shouldMatch(".class,load. ReportMyLoader source: file:.*" + jarFileName); 83 }); 84 85 // (3) Try to change the java.system.class.loader programmatically after 86 // the app's main method is executed. This should have no effect in terms of 87 // changing or switching the actual system class loader that's already in use. 88 TestCommon.run( 89 "-verbose:class", 90 "-cp", appJar, 91 "TrySwitchMyLoader") 92 .assertNormalExit("[class,load] ReportMyLoader source: shared objects file", 93 "TrySwitchMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@", 94 "ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@", 95 "TestClassLoader.called = false"); 96 } 97 }