test/hotspot/jtreg/runtime/cds/appcds/SpecifySysLoaderProp.java
author iklam
Fri, 09 Aug 2019 13:13:36 -0700
changeset 57705 7cf02b2c1455
parent 57567 b000362a89a0
child 58679 9c3209ff7550
permissions -rw-r--r--
8229267: [TESTBUG] Remove unnecessary @modules dependencies in CDS tests Reviewed-by: alanb, lfoltan
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/*
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 * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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/*
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 * @test
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 * @summary If -Djava.system.class.loader=xxx is specified in command-line, disable archived non-system classes
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 * @requires vm.cds
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 * @library /test/lib
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 * @modules jdk.jartool/sun.tools.jar
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 * @compile test-classes/TestClassLoader.java
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 * @compile test-classes/ReportMyLoader.java
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 * @compile test-classes/TrySwitchMyLoader.java
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 * @run driver SpecifySysLoaderProp
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 */
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import java.io.*;
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import jdk.test.lib.process.OutputAnalyzer;
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public class SpecifySysLoaderProp {
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  public static void main(String[] args) throws Exception {
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    JarBuilder.build("sysloader", "TestClassLoader", "ReportMyLoader", "TrySwitchMyLoader");
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    String jarFileName = "sysloader.jar";
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    String appJar = TestCommon.getTestJar(jarFileName);
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    TestCommon.testDump(appJar, TestCommon.list("ReportMyLoader"));
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    String warning = "VM warning: Archived non-system classes are disabled because the java.system.class.loader property is specified";
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    // (0) Baseline. Do not specify -Djava.system.class.loader
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    //     The test class should be loaded from archive
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    TestCommon.run(
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        "-verbose:class",
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        "-cp", appJar,
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        "ReportMyLoader")
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      .assertNormalExit("[class,load] ReportMyLoader source: shared objects file",
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                        "ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@");
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    // (1) Try to execute the archive with -Djava.system.class.loader=no.such.Klass,
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    //     it should fail
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    TestCommon.run(
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        "-cp", appJar,
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        "-Djava.system.class.loader=no.such.Klass",
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        "ReportMyLoader")
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      .assertAbnormalExit(output -> {
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          output.shouldContain(warning);
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          output.shouldContain("ClassNotFoundException: no.such.Klass");
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        });
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    // (2) Try to execute the archive with -Djava.system.class.loader=TestClassLoader,
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    //     it should run, but archived non-system classes should be disabled
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    TestCommon.run(
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        "-verbose:class",
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        "-cp", appJar,
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        "-Djava.system.class.loader=TestClassLoader",
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        "ReportMyLoader")
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      .assertNormalExit("ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@", //<-this is still printed because TestClassLoader simply delegates to Launcher$AppLoader, but ...
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             "TestClassLoader.called = true", //<-but this proves that TestClassLoader was indeed called.
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             "TestClassLoader: loadClass(\"ReportMyLoader\",") //<- this also proves that TestClassLoader was indeed called.
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      .assertNormalExit(output -> {
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        output.shouldMatch(".class,load. TestClassLoader source: file:");
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        output.shouldMatch(".class,load. ReportMyLoader source: file:.*" + jarFileName);
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        });
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    // (3) Try to change the java.system.class.loader programmatically after
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    //     the app's main method is executed. This should have no effect in terms of
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    //     changing or switching the actual system class loader that's already in use.
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    TestCommon.run(
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        "-verbose:class",
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        "-cp", appJar,
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        "TrySwitchMyLoader")
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      .assertNormalExit("[class,load] ReportMyLoader source: shared objects file",
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             "TrySwitchMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@",
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             "ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@",
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             "TestClassLoader.called = false");
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  }
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}