1 /*
   2  * Copyright (c) 2019, 2020, 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 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/cds/appcds
  30  * @compile ../test-classes/Hello.java
  31  * @compile ../test-classes/HelloMore.java
  32  * @build sun.hotspot.WhiteBox
  33  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  34  * @run main/othervm -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. AppendClasspath
  35  */
  36 
  37 import java.io.File;
  38 
  39 public class AppendClasspath extends DynamicArchiveTestBase {
  40 
  41     public static void main(String[] args) throws Exception {
  42         runTest(AppendClasspath::testDefaultBase);
  43     }
  44 
  45     static void testDefaultBase() throws Exception {
  46         String topArchiveName = getNewArchiveName("top");
  47         doTest(topArchiveName);
  48     }
  49 
  50     private static void doTest(String topArchiveName) throws Exception {
  51         String appJar = JarBuilder.getOrCreateHelloJar();
  52         String appJar2 = JarBuilder.build("AppendClasspath_HelloMore", "HelloMore");
  53 
  54         // Dump an archive with a specified JAR file in -classpath
  55         dump(topArchiveName,
  56              "-Xlog:cds",
  57              "-Xlog:cds+dynamic=debug",
  58              "-cp", appJar, "Hello")
  59             .assertNormalExit(output -> {
  60                     output.shouldContain("Buffer-space to target-space delta")
  61                            .shouldContain("Written dynamic archive 0x");
  62                 });
  63 
  64         // runtime with classpath containing the one used in dump time,
  65         // i.e. the dump time classpath is a prefix of the runtime classpath.
  66         run(topArchiveName,
  67             "-Xlog:class+load",
  68             "-Xlog:cds+dynamic=debug,cds=debug",
  69             "-cp", appJar + File.pathSeparator + appJar2,
  70             "HelloMore")
  71             .assertNormalExit(output -> {
  72                     output.shouldContain("Hello source: shared objects file")
  73                           .shouldContain("Hello World ... More")
  74                           .shouldHaveExitValue(0);
  75                 });
  76 
  77         // reverse the order of the 2 jar files so that the dump time classpath
  78         // is no longer a prefix of the runtime classpath. The Hello class
  79         // should be loaded from the jar file.
  80         run(topArchiveName,
  81             "-Xlog:class+load",
  82             "-Xlog:cds+dynamic=debug,cds=debug",
  83             "-cp", appJar2 + File.pathSeparator + appJar,
  84             "HelloMore")
  85             .assertAbnormalExit(output -> {
  86                     output.shouldContain("shared class paths mismatch")
  87                           .shouldHaveExitValue(1);
  88                 });
  89 
  90     }
  91 }