1 /*

     2  * Copyright (c) 2015, 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

    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 Test a few scenarios if an empty class, which has the same name as the one in the jimage, is specified in the -Xbootclasspath/a

    28  *     1) boot loader will always load the class from the bootclasspath

    29  *     2) app loader will load the class from the jimage by default;

    30  *        app loader will load the class from the bootclasspath if the

    31  *        "--limit-modules java.base" option is specified

    32  * @requires vm.cds & !vm.graal.enabled

    33  * @library /test/lib /test/hotspot/jtreg/runtime/appcds

    34  * @modules java.base/jdk.internal.access

    35  *          java.management

    36  *          jdk.jartool/sun.tools.jar

    37  *          jdk.internal.jvmstat/sun.jvmstat.monitor

    38  * @compile ../../test-classes/EmptyClassHelper.java

    39  * @compile ../../test-classes/com/sun/tools/javac/Main.jasm

    40  * @run driver EmptyClassInBootClassPath

    41  */

    42 

    43 import java.io.File;

    44 import java.lang.*;

    45 import java.lang.reflect.*;

    46 import java.util.List;

    47 import java.util.ArrayList;

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

    49 

    50 public class EmptyClassInBootClassPath {

    51     static final String EXPECTED_EXCEPTION =

    52         "java.lang.NoSuchMethodException: com.sun.tools.javac.Main.main([Ljava.lang.String;)";

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

    54         String[] className = {"com/sun/tools/javac/Main"};

    55         JarBuilder.build("emptyClass", className);

    56         String appJar = TestCommon.getTestJar("emptyClass.jar");

    57         JarBuilder.build("EmptyClassHelper", "EmptyClassHelper");

    58         String helperJar = TestCommon.getTestJar("EmptyClassHelper.jar");

    59         OutputAnalyzer dumpOutput = TestCommon.dump(

    60             appJar, className, "-Xbootclasspath/a:" + appJar);

    61         TestCommon.checkDump(dumpOutput);

    62         dumpOutput.shouldNotContain("Preload Warning: skipping class from -Xbootclasspath/a " + className[0]);

    63 

    64         String bootclasspath = "-Xbootclasspath/a:" + appJar;

    65         String classPath = "-Djava.class.path=" + appJar + File.pathSeparator + helperJar;

    66         List<String> argsList = new ArrayList<String>();

    67         argsList.add(classPath);

    68         argsList.add(bootclasspath);

    69         argsList.add("--add-exports=java.base/jdk.internal.access=ALL-UNNAMED");

    70         argsList.add("EmptyClassHelper");

    71 

    72         // case 1: load class in bootclasspath using app loader

    73         argsList.add("useAppLoader");

    74         String[] opts = new String[argsList.size()];

    75         opts = argsList.toArray(opts);

    76         TestCommon.run(opts).assertNormalExit("appLoader found method main");

    77 

    78         // case 2: load class in bootclasspath using boot loader

    79         argsList.remove(argsList.size() - 1);

    80         argsList.add("useBootLoader");

    81         opts = new String[argsList.size()];

    82         opts = argsList.toArray(opts);

    83         TestCommon.run(opts).assertNormalExit(EXPECTED_EXCEPTION);

    84 

    85         // case 3: load class in bootclasspath using app loader with '--limit-modules java.base'

    86         argsList.add(0, "--limit-modules");

    87         argsList.add(1, "java.base");

    88         argsList.remove(argsList.size() - 1);

    89         argsList.add("useAppLoader");

    90         opts = new String[argsList.size()];

    91         opts = argsList.toArray(opts);

    92         TestCommon.run(opts)

    93             .assertSilentlyDisabledCDS(0, EXPECTED_EXCEPTION);

    94 

    95         // case 4: load class in bootclasspath using boot loader with '--limit-modules java.base'

    96         argsList.remove(argsList.size() - 1);

    97         argsList.add("useBootLoader");

    98         opts = new String[argsList.size()];

    99         opts = argsList.toArray(opts);

   100         TestCommon.run(opts)

   101             .assertSilentlyDisabledCDS(0, EXPECTED_EXCEPTION);

   102     }

   103 }