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
  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 Initiating and defining classloader test.
  28  * @requires vm.cds
  29  * @library /test/lib
  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/HelloWB.java
  35  * @compile test-classes/ForNameTest.java
  36  * @compile test-classes/BootClassPathAppendHelper.java
  37  * @build sun.hotspot.WhiteBox
  38  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  39  * @run driver ClassLoaderTest
  40  */
  41 
  42 import java.io.File;
  43 import jdk.test.lib.process.OutputAnalyzer;
  44 
  45 public class ClassLoaderTest {
  46     public static void main(String[] args) throws Exception {
  47         JarBuilder.build(true, "ClassLoaderTest-WhiteBox", "sun/hotspot/WhiteBox");
  48         JarBuilder.getOrCreateHelloJar();
  49         JarBuilder.build("ClassLoaderTest-HelloWB", "HelloWB");
  50         JarBuilder.build("ClassLoaderTest-ForName", "ForNameTest");
  51         ClassLoaderTest test = new ClassLoaderTest();
  52         test.testBootLoader();
  53         test.testDefiningLoader();
  54     }
  55 
  56     public void testBootLoader() throws Exception {
  57         String appJar = TestCommon.getTestJar("ClassLoaderTest-HelloWB.jar");
  58         String appClasses[] = {"HelloWB"};
  59         String whiteBoxJar = TestCommon.getTestJar("ClassLoaderTest-WhiteBox.jar");
  60         String bootClassPath = "-Xbootclasspath/a:" + appJar +
  61             File.pathSeparator + whiteBoxJar;
  62 
  63         TestCommon.dump(appJar, appClasses, bootClassPath);
  64 
  65         TestCommon.run(
  66             "-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI",
  67             "-cp", appJar, bootClassPath, "HelloWB")
  68           .assertNormalExit(output -> output.shouldContain("HelloWB.class.getClassLoader() = null"));
  69     }
  70 
  71     public void testDefiningLoader() throws Exception {
  72         // The boot loader should be used to load the class when it's
  73         // on the bootclasspath, regardless who is the initiating classloader.
  74         // In this test case, the AppClassLoader is the initiating classloader.
  75         String helloJar = TestCommon.getTestJar("hello.jar");
  76         String appJar = helloJar + System.getProperty("path.separator") +
  77                         TestCommon.getTestJar("ClassLoaderTest-ForName.jar");
  78         String whiteBoxJar = TestCommon.getTestJar("ClassLoaderTest-WhiteBox.jar");
  79         String bootClassPath = "-Xbootclasspath/a:" + helloJar +
  80             File.pathSeparator + whiteBoxJar;
  81 
  82         // Archive the "Hello" class from the appended bootclasspath
  83         TestCommon.dump(helloJar, TestCommon.list("Hello"), bootClassPath);
  84 
  85         TestCommon.run("-XX:+UnlockDiagnosticVMOptions", "-XX:+WhiteBoxAPI",
  86             "-cp", appJar, bootClassPath, "-Xlog:class+path=trace", "ForNameTest")
  87           .assertNormalExit();
  88     }
  89 }