1 /*

     2  * Copyright (c) 2013, 2015, 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

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    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.

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    23 

    24 /*

    25  * @test CdsDifferentCompactStrings

    26  * @summary CDS (class data sharing) requires the same -XX:[+-]CompactStrings

    27  *          setting between archive creation time and load time.

    28  * @library /testlibrary

    29  * @modules java.base/sun.misc

    30  *          java.management

    31  */

    32 

    33 import jdk.test.lib.*;

    34 

    35 public class CdsDifferentCompactStrings {

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

    37         createAndLoadSharedArchive("+", "-");

    38         createAndLoadSharedArchive("-", "+");

    39     }

    40 

    41     private static void createAndLoadSharedArchive(String create, String load)

    42         throws Exception

    43     {

    44         String createCompactStringsArgument = "-XX:" + create + "CompactStrings";

    45         String loadCompactStringsArgument   = "-XX:" + load   + "CompactStrings";

    46 

    47         String filename = "./CdsDifferentCompactStrings" + create + ".jsa";

    48 

    49         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

    50             "-XX:+UnlockDiagnosticVMOptions",

    51             "-XX:SharedArchiveFile=" + filename,

    52             "-Xshare:dump",

    53             createCompactStringsArgument);

    54 

    55         OutputAnalyzer output = new OutputAnalyzer(pb.start());

    56         output.shouldContain("Loading classes to share");

    57         output.shouldHaveExitValue(0);

    58 

    59         pb = ProcessTools.createJavaProcessBuilder(

    60             "-XX:+UnlockDiagnosticVMOptions",

    61             "-XX:SharedArchiveFile=" + filename,

    62             "-Xshare:on",

    63             loadCompactStringsArgument,

    64             "-version");

    65 

    66         output = new OutputAnalyzer(pb.start());

    67         try {

    68             output.shouldContain("The shared archive file's CompactStrings " +

    69                 "setting .* does not equal the current CompactStrings setting");

    70         } catch (RuntimeException e) {

    71             output.shouldContain("Unable to use shared archive");

    72         }

    73         output.shouldHaveExitValue(1);

    74     }

    75 }