1 /*

     2  * Copyright (c) 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

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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.

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    23  */

    24 

    25 /*

    26  * @test

    27  * @summary At run time, it is OK to append new elements to the classpath that was used at dump time.

    28  * @requires vm.cds

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

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

    31  *          java.management

    32  *          jdk.jartool/sun.tools.jar

    33  * @compile ../test-classes/Hello.java

    34  * @compile ../test-classes/HelloMore.java

    35  * @run driver AppendClasspath

    36  */

    37 

    38 import java.io.File;

    39 

    40 public class AppendClasspath extends DynamicArchiveTestBase {

    41 

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

    43         runTest(AppendClasspath::testDefaultBase);

    44     }

    45 

    46     static void testDefaultBase() throws Exception {

    47         String topArchiveName = getNewArchiveName("top");

    48         doTest(topArchiveName);

    49     }

    50 

    51     private static void doTest(String topArchiveName) throws Exception {

    52         String appJar = JarBuilder.getOrCreateHelloJar();

    53         String appJar2 = JarBuilder.build("AppendClasspath_HelloMore", "HelloMore");

    54 

    55         // Dump an archive with a specified JAR file in -classpath

    56         dump(topArchiveName,

    57              "-Xlog:cds",

    58              "-Xlog:cds+dynamic=debug",

    59              "-cp", appJar, "Hello")

    60             .assertNormalExit(output -> {

    61                     output.shouldContain("Buffer-space to target-space delta")

    62                            .shouldContain("Written dynamic archive 0x");

    63                 });

    64 

    65         // runtime with classpath containing the one used in dump time,

    66         // i.e. the dump time classpath is a prefix of the runtime classpath.

    67         run(topArchiveName,

    68             "-Xlog:class+load",

    69             "-Xlog:cds+dynamic=debug,cds=debug",

    70             "-cp", appJar + File.pathSeparator + appJar2,

    71             "HelloMore")

    72             .assertNormalExit(output -> {

    73                     output.shouldContain("Hello source: shared objects file")

    74                           .shouldContain("Hello World ... More")

    75                           .shouldHaveExitValue(0);

    76                 });

    77 

    78         // reverse the order of the 2 jar files so that the dump time classpath

    79         // is no longer a prefix of the runtime classpath. The Hello class

    80         // should be loaded from the jar file.

    81         run(topArchiveName,

    82             "-Xlog:class+load",

    83             "-Xlog:cds+dynamic=debug,cds=debug",

    84             "-cp", appJar2 + File.pathSeparator + appJar,

    85             "HelloMore")

    86             .assertAbnormalExit(output -> {

    87                     output.shouldContain("shared class paths mismatch")

    88                           .shouldHaveExitValue(1);

    89                 });

    90 

    91     }

    92 }