--- /dev/null 2015-10-30 10:00:53.843909024 +0100 +++ new/test/runtime/SharedArchiveFile/CdsDifferentCompactStrings.java 2015-10-30 19:14:59.300475888 +0100 @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2013, 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 CdsDifferentCompactStrings + * @summary CDS (class data sharing) requires the same -XX:[+-]CompactStrings + * setting between archive creation time and load time. + * @library /testlibrary + * @modules java.base/sun.misc + * java.management + */ + +import jdk.test.lib.*; + +public class CdsDifferentCompactStrings { + public static void main(String[] args) throws Exception { + createAndLoadSharedArchive("+", "-"); + createAndLoadSharedArchive("-", "+"); + } + + private static void createAndLoadSharedArchive(String create, String load) + throws Exception + { + String createCompactStringsArgument = "-XX:" + create + "CompactStrings"; + String loadCompactStringsArgument = "-XX:" + load + "CompactStrings"; + + String filename = "./CdsDifferentCompactStrings" + create + ".jsa"; + + ProcessBuilder pb = ProcessTools.createJavaProcessBuilder( + "-XX:+UnlockDiagnosticVMOptions", + "-XX:SharedArchiveFile=" + filename, + "-Xshare:dump", + createCompactStringsArgument); + + OutputAnalyzer output = new OutputAnalyzer(pb.start()); + output.shouldContain("Loading classes to share"); + output.shouldHaveExitValue(0); + + pb = ProcessTools.createJavaProcessBuilder( + "-XX:+UnlockDiagnosticVMOptions", + "-XX:SharedArchiveFile=" + filename, + "-Xshare:on", + loadCompactStringsArgument, + "-version"); + + output = new OutputAnalyzer(pb.start()); + try { + output.shouldContain("The shared archive file's CompactStrings " + + "setting .* does not equal the current CompactStrings setting"); + } catch (RuntimeException e) { + output.shouldContain("Unable to use shared archive"); + } + output.shouldHaveExitValue(1); + } +}