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 Exercise GC with shared strings
  28  * @requires vm.cds.archived.java.heap
  29  * @library /test/hotspot/jtreg/runtime/cds /test/lib
  30  * @modules jdk.jartool/sun.tools.jar
  31  * @build HelloStringGC sun.hotspot.WhiteBox
  32  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  33  * @run driver ExerciseGC
  34  */
  35 public class ExerciseGC {
  36     public static void main(String[] args) throws Exception {
  37         SharedStringsUtils.run(args, ExerciseGC::test);
  38     }
  39     public static void test(String[] args) throws Exception {
  40         SharedStringsUtils.buildJarAndWhiteBox("HelloStringGC");
  41 
  42         SharedStringsUtils.dumpWithWhiteBox(TestCommon.list("HelloStringGC"),
  43             "SharedStringsBasic.txt", "-Xlog:cds,cds+hashtables");
  44 
  45         SharedStringsUtils.runWithArchiveAndWhiteBox("HelloStringGC",
  46             "-XX:+UnlockDiagnosticVMOptions", "-XX:+VerifyBeforeGC");
  47     }
  48 }