1 /*

     2  * Copyright (c) 2016, 2017, 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  * @requires (vm.opt.UseCompressedOops == null) | (vm.opt.UseCompressedOops == true)

    28  * @summary sharing is disabled if java.base is patch at runtime

    29  * @library ../..

    30  * @library /test/hotspot/jtreg/testlibrary

    31  * @library /test/lib

    32  * @modules java.base/jdk.internal.misc

    33  *          jdk.jartool/sun.tools.jar

    34  * @build PatchMain

    35  * @run main PatchJavaBase

    36  */

    37 

    38 import jdk.test.lib.compiler.InMemoryJavaCompiler;

    39 import jdk.test.lib.process.OutputAnalyzer;

    40 

    41 public class PatchJavaBase {

    42     private static String moduleJar;

    43 

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

    45 

    46         String source = "package java.lang; "                       +

    47                         "public class NewClass { "                  +

    48                         "    static { "                             +

    49                         "        System.out.println(\"I pass!\"); " +

    50                         "    } "                                    +

    51                         "}";

    52 

    53         ClassFileInstaller.writeClassToDisk("java/lang/NewClass",

    54              InMemoryJavaCompiler.compile("java.lang.NewClass", source, "--patch-module=java.base"),

    55              System.getProperty("test.classes"));

    56 

    57         JarBuilder.build("javabase", "java/lang/NewClass");

    58         moduleJar = TestCommon.getTestJar("javabase.jar");

    59 

    60         System.out.println("Test dumping with --patch-module");

    61         OutputAnalyzer output =

    62             TestCommon.dump(null, null,

    63                 "--patch-module=java.base=" + moduleJar,

    64                 "PatchMain", "java.lang.NewClass");

    65         TestCommon.checkDump(output, "Loading classes to share");

    66 

    67         output = TestCommon.execCommon(

    68             "-XX:+UnlockDiagnosticVMOptions",

    69             "--patch-module=java.base=" + moduleJar,

    70             "PatchMain", "java.lang.NewClass");

    71         output.shouldContain("CDS is disabled when java.base module is patched");

    72     }

    73 }