1 /* 2 * Copyright (c) 2015, 2018, 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 * @summary Basic test for shared strings 28 * @requires vm.cds.archived.java.heap 29 * @library /test/hotspot/jtreg/runtime/appcds /test/lib 30 * @modules java.base/jdk.internal.misc 31 * @modules java.management 32 * jdk.jartool/sun.tools.jar 33 * @build HelloString 34 * @run main SharedStringsBasic 35 * @run main/othervm -XX:+UseStringDeduplication SharedStringsBasic 36 * @run main/othervm -XX:-CompactStrings SharedStringsBasic 37 */ 38 import jdk.test.lib.process.OutputAnalyzer; 39 import jdk.test.lib.process.ProcessTools; 40 41 // This test does not use SharedStringsUtils intentionally: 42 // - in order to demonstrate the basic use of the functionality 43 // - to provide sanity check and catch potential problems in the utils 44 public class SharedStringsBasic { 45 public static void main(String[] args) throws Exception { 46 String appJar = JarBuilder.build("SharedStringsBasic", "HelloString"); 47 48 String sharedArchiveConfigFile = 49 TestCommon.getSourceFile("SharedStringsBasic.txt").toString(); 50 51 ProcessBuilder dumpPb = ProcessTools.createJavaProcessBuilder(true, 52 "-cp", appJar, 53 "-XX:SharedArchiveConfigFile=" + sharedArchiveConfigFile, 54 "-XX:SharedArchiveFile=./SharedStringsBasic.jsa", 55 "-Xshare:dump", 56 "-Xlog:cds,cds+hashtables"); 57 58 TestCommon.executeAndLog(dumpPb, "dump") 59 .shouldContain("Shared string table stats") 60 .shouldHaveExitValue(0); 61 62 ProcessBuilder runPb = ProcessTools.createJavaProcessBuilder(true, 63 "-cp", appJar, 64 "-XX:SharedArchiveFile=./SharedStringsBasic.jsa", 65 "-Xshare:auto", 66 "-showversion", 67 "HelloString"); 68 69 TestCommon.executeAndLog(runPb, "run").shouldHaveExitValue(0); 70 } 71 }