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 driver 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 }
--- EOF ---