1 /*
   2  * Copyright (c) 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 non-empty dir in -cp should be fine during dump time if only classes
  28  *          from the system modules are being loaded even though some are
  29  *          defined to the PlatformClassLoader and AppClassLoader.
  30  * @requires vm.cds
  31  * @library /test/lib /test/hotspot/jtreg/runtime/cds/appcds
  32  * @build sun.hotspot.WhiteBox
  33  * @compile ../test-classes/Hello.java
  34  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  35  * @run main/othervm -Dtest.cds.copy.child.stdout=false -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:. UnusedCPDuringDump
  36  */
  37 
  38 import java.io.File;
  39 
  40 public class UnusedCPDuringDump extends DynamicArchiveTestBase {
  41 
  42     public static void main(String[] args) throws Exception {
  43         runTest(UnusedCPDuringDump::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         File dir = new File(System.getProperty("user.dir"));
  53         File emptydir = new File(dir, "emptydir");
  54         emptydir.mkdir();
  55         String appJar = JarBuilder.getOrCreateHelloJar();
  56         String bootClassPath = "-Xbootclasspath/a:" + appJar;
  57 
  58         // Dumping with a non-empty directory in the -cp.
  59         // It should be fine because the app class won't be loaded from the
  60         // -cp, it is being loaded from the bootclasspath.
  61         dump(topArchiveName,
  62              "-Xlog:cds",
  63              "-Xlog:cds+dynamic=debug",
  64              bootClassPath,
  65              "-cp", dir.getPath(),
  66              "Hello")
  67             .assertNormalExit(output -> {
  68                  output.shouldContain("Buffer-space to target-space delta")
  69                         .shouldContain("Written dynamic archive 0x");
  70                 });
  71 
  72         // Running with -cp different from dumping. It should be fine because
  73         // the runtime classpath won't be checked against unused classpath
  74         // during dump time.
  75         run(topArchiveName,
  76             "-Xlog:class+load",
  77             "-Xlog:cds+dynamic=debug,cds=debug",
  78              bootClassPath,
  79             "-cp", appJar, "Hello")
  80             .assertNormalExit(output -> {
  81                     output.shouldContain("Hello World")
  82                           .shouldHaveExitValue(0);
  83                 });
  84   }
  85 }