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 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 * @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 }