1 /*
   2  * Copyright (c) 2017, 2018, Red Hat, Inc. 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 TestHeuristicsUnlock
  27  * @summary Test that Shenandoah heuristics are unlocked properly
  28  * @key gc
  29  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  30  * @library /test/lib
  31  * @modules java.base/jdk.internal.misc
  32  *          java.management
  33  * @run driver TestHeuristicsUnlock
  34  */
  35 
  36 import jdk.test.lib.process.ProcessTools;
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 
  39 public class TestHeuristicsUnlock {
  40 
  41     enum Mode {
  42         PRODUCT,
  43         DIAGNOSTIC,
  44         EXPERIMENTAL,
  45     }
  46 
  47     public static void main(String[] args) throws Exception {
  48         testWith("-XX:ShenandoahGCHeuristics=adaptive",   Mode.PRODUCT);
  49         testWith("-XX:ShenandoahGCHeuristics=static",     Mode.PRODUCT);
  50         testWith("-XX:ShenandoahGCHeuristics=compact",    Mode.PRODUCT);
  51         testWith("-XX:ShenandoahGCHeuristics=aggressive", Mode.DIAGNOSTIC);
  52     }
  53 
  54     private static void testWith(String h, Mode mode) throws Exception {
  55         {
  56             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  57                     "-XX:-UnlockDiagnosticVMOptions",
  58                     "-XX:-UnlockExperimentalVMOptions",
  59                     "-XX:+UseShenandoahGC",
  60                     h,
  61                     "-version"
  62             );
  63             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  64             switch (mode) {
  65                 case PRODUCT:
  66                     output.shouldHaveExitValue(0);
  67                     break;
  68                 case DIAGNOSTIC:
  69                 case EXPERIMENTAL:
  70                     output.shouldNotHaveExitValue(0);
  71                     break;
  72             }
  73         }
  74 
  75         {
  76             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  77                     "-XX:+UnlockDiagnosticVMOptions",
  78                     "-XX:-UnlockExperimentalVMOptions",
  79                     "-XX:+UseShenandoahGC",
  80                     h,
  81                     "-version"
  82             );
  83             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  84             switch (mode) {
  85                 case PRODUCT:
  86                 case DIAGNOSTIC:
  87                     output.shouldHaveExitValue(0);
  88                     break;
  89                 case EXPERIMENTAL:
  90                     output.shouldNotHaveExitValue(0);
  91                     break;
  92             }
  93         }
  94 
  95         {
  96             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  97                     "-XX:-UnlockDiagnosticVMOptions",
  98                     "-XX:+UnlockExperimentalVMOptions",
  99                     "-XX:+UseShenandoahGC",
 100                     h,
 101                     "-version"
 102             );
 103             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 104             switch (mode) {
 105                 case PRODUCT:
 106                 case EXPERIMENTAL:
 107                     output.shouldHaveExitValue(0);
 108                     break;
 109                 case DIAGNOSTIC:
 110                     output.shouldNotHaveExitValue(0);
 111                     break;
 112             }
 113         }
 114     }
 115 
 116 }