test/hotspot/jtreg/runtime/appcds/RewriteBytecodesTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
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 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
 * @test
 * @summary Use ClassLoader.defineClass() to load a class with rewritten bytecode. Make sure
 *          the archived class with the same name is not loaded.
 * @requires vm.cds
 * @library /test/lib
 * @modules java.base/jdk.internal.misc
 *          java.management
 *          jdk.jartool/sun.tools.jar
 * @compile test-classes/RewriteBytecodes.java test-classes/Util.java test-classes/Super.java test-classes/Child.java
 * @build sun.hotspot.WhiteBox
 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
 * @run main RewriteBytecodesTest
 */

import java.io.File;
import jdk.test.lib.process.OutputAnalyzer;

public class RewriteBytecodesTest {
  public static void main(String[] args) throws Exception {
    String wbJar = JarBuilder.build(true, "WhiteBox", "sun/hotspot/WhiteBox");
    String use_whitebox_jar = "-Xbootclasspath/a:" + wbJar;

    String appJar = JarBuilder.build("dynamic_define", "RewriteBytecodes", "Util", "Super", "Child");
    String superClsFile = (new File(System.getProperty("test.classes", "."), "Super.class")).getPath();

    TestCommon.dump(appJar, TestCommon.list("RewriteBytecodes", "Super", "Child"),
                    // command-line arguments ...
                    use_whitebox_jar);

    OutputAnalyzer output = TestCommon.exec(appJar,
                    // command-line arguments ...
                    "--add-opens=java.base/java.lang=ALL-UNNAMED",
                    use_whitebox_jar,
                    "-XX:+UnlockDiagnosticVMOptions",
                    "-XX:+WhiteBoxAPI",
                    "RewriteBytecodes", superClsFile);
    TestCommon.checkExec(output);
  }
}