hotspot/test/runtime/modules/Visibility/XpatchVisibility.java
author chegar
Sat, 09 Apr 2016 23:03:39 +0100
changeset 36851 03e2f4d0a421
parent 36508 5f9eee6b383b
child 37773 e5b3e9732c3c
permissions -rw-r--r--
8153737: Unsupported Module Reviewed-by: alanb, mchung, psandoz

/*
 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
 * 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
 * published by the Free Software Foundation.
 *
 * 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @summary Ensure that a newly introduced java.base package placed within the -Xpatch directory
 *          is considered part of the boot loader's visibility boundary
 * @requires !(os.family == "windows")
 * @library /testlibrary
 * @modules java.base/jdk.internal.misc
 *          java.management
 * @run main/othervm XpatchVisibility
 */

import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;

import jdk.test.lib.*;

public class XpatchVisibility {

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

      String Vis2_B_src =
              "package p2;" +
              "public class Vis2_B {" +
              "    public void m() {" +
              "        System.out.println(\"In B's m()\");" +
              "    }" +
              "}";

      String Vis2_A_src =
              "import p2.*;" +
              "public class Vis2_A {" +
              "    public static void main(String args[]) throws Exception {" +
                      // Try loading a class within a newly introduced java.base
                      // package.  Make sure the class can be found via -Xpatch.
              "        try {" +
              "            p2.Vis2_B b = new p2.Vis2_B();" +
              "            if (b.getClass().getClassLoader() != null) {" +
              "                throw new RuntimeException(\"XpatchVisibility FAILED - class B " +
                                                           "should be loaded by boot class loader\\n\");" +
              "            }" +
              "            b.m();" +
              "        } catch (Throwable e) {" +
              "            throw new RuntimeException(\"XpatchVisibility FAILED - test " +
                                                       "should not throw an error or exception\\n\");" +
              "        }" +
              "        System.out.println(\"XpatchVisibility PASSED\\n\");" +
              "    }" +
              "}";

      ClassFileInstaller.writeClassToDisk("p2/Vis2_B",
          InMemoryJavaCompiler.compile("p2.Vis2_B", Vis2_B_src), System.getProperty("test.classes"));
      ClassFileInstaller.writeClassToDisk("p2/Vis2_B", "mods2/java.base");

      ClassFileInstaller.writeClassToDisk("Vis2_A",
          InMemoryJavaCompiler.compile("Vis2_A", Vis2_A_src), System.getProperty("test.classes"));

      // Make sure the classes are actually being loaded from mods2
      Files.delete(Paths.get(System.getProperty("test.classes") +  File.separator +
                                                           "p2" + File.separator + "Vis2_B.class"));

      new OutputAnalyzer(ProcessTools.createJavaProcessBuilder(
              "-Xpatch:mods2",
              "-XaddExports:java.base/p2=ALL-UNNAMED",
              "Vis2_A")
          .start()).shouldHaveExitValue(0);
    }
}