1 /*

     2  * Copyright (c) 2014, 2018, 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

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    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  * @modules java.base/jdk.internal.misc

    31  *      jdk.jartool/sun.tools.jar

    32  * @compile test-classes/TestClassLoader.java

    33  * @compile test-classes/ReportMyLoader.java

    34  * @compile test-classes/TrySwitchMyLoader.java

    35  * @run driver SpecifySysLoaderProp

    36  */

    37 

    38 import java.io.*;

    39 import jdk.test.lib.process.OutputAnalyzer;

    40 

    41 public class SpecifySysLoaderProp {

    42 

    43   public static void main(String[] args) throws Exception {

    44     JarBuilder.build("sysloader", "TestClassLoader", "ReportMyLoader", "TrySwitchMyLoader");

    45 

    46     String jarFileName = "sysloader.jar";

    47     String appJar = TestCommon.getTestJar(jarFileName);

    48     TestCommon.testDump(appJar, TestCommon.list("ReportMyLoader"));

    49     String warning = "VM warning: Archived non-system classes are disabled because the java.system.class.loader property is specified";

    50 

    51 

    52     // (0) Baseline. Do not specify -Djava.system.class.loader

    53     //     The test class should be loaded from archive

    54     TestCommon.run(

    55         "-verbose:class",

    56         "-cp", appJar,

    57         "ReportMyLoader")

    58       .assertNormalExit("[class,load] ReportMyLoader source: shared objects file",

    59                         "ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@");

    60 

    61     // (1) Try to execute the archive with -Djava.system.class.loader=no.such.Klass,

    62     //     it should fail

    63     TestCommon.run(

    64         "-cp", appJar,

    65         "-Djava.system.class.loader=no.such.Klass",

    66         "ReportMyLoader")

    67       .assertAbnormalExit(output -> {

    68           output.shouldContain(warning);

    69           output.shouldContain("ClassNotFoundException: no.such.Klass");

    70         });

    71 

    72     // (2) Try to execute the archive with -Djava.system.class.loader=TestClassLoader,

    73     //     it should run, but archived non-system classes should be disabled

    74     TestCommon.run(

    75         "-verbose:class",

    76         "-cp", appJar,

    77         "-Djava.system.class.loader=TestClassLoader",

    78         "ReportMyLoader")

    79       .assertNormalExit("ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@", //<-this is still printed because TestClassLoader simply delegates to Launcher$AppLoader, but ...

    80              "TestClassLoader.called = true", //<-but this proves that TestClassLoader was indeed called.

    81              "TestClassLoader: loadClass(\"ReportMyLoader\",") //<- this also proves that TestClassLoader was indeed called.

    82       .assertNormalExit(output -> {

    83         output.shouldMatch(".class,load. TestClassLoader source: file:");

    84         output.shouldMatch(".class,load. ReportMyLoader source: file:.*" + jarFileName);

    85         });

    86 

    87     // (3) Try to change the java.system.class.loader programmatically after

    88     //     the app's main method is executed. This should have no effect in terms of

    89     //     changing or switching the actual system class loader that's already in use.

    90     TestCommon.run(

    91         "-verbose:class",

    92         "-cp", appJar,

    93         "TrySwitchMyLoader")

    94       .assertNormalExit("[class,load] ReportMyLoader source: shared objects file",

    95              "TrySwitchMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@",

    96              "ReportMyLoader's loader = jdk.internal.loader.ClassLoaders$AppClassLoader@",

    97              "TestClassLoader.called = false");

    98   }

    99 }