1 /*
   2  * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.
   7  *
   8  * This code is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  11  * version 2 for more details (a copy is included in the LICENSE file that
  12  * accompanied this code).
  13  *
  14  * You should have received a copy of the GNU General Public License version
  15  * 2 along with this work; if not, write to the Free Software Foundation,
  16  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17  *
  18  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  19  * or visit www.oracle.com if you need additional information or have any
  20  * questions.
  21  *
  22  */
  23 
  24 /*
  25  * @test TestHeuristicsUnlock
  26  * @summary Test that Shenandoah heuristics are unlocked properly
  27  * @key gc
  28  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  29  * @library /test/lib
  30  * @modules java.base/jdk.internal.misc
  31  *          java.management
  32  * @run driver TestHeuristicsUnlock
  33  */
  34 
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;
  37 
  38 public class TestHeuristicsUnlock {
  39 
  40     enum Mode {
  41         PRODUCT,
  42         DIAGNOSTIC,
  43         EXPERIMENTAL,
  44     }
  45 
  46     public static void main(String[] args) throws Exception {
  47         testWith("-XX:ShenandoahGCHeuristics=adaptive", Mode.PRODUCT);
  48         testWith("-XX:ShenandoahGCHeuristics=static", Mode.PRODUCT);
  49         testWith("-XX:ShenandoahGCHeuristics=compact", Mode.PRODUCT);
  50 
  51         testWith("-XX:ShenandoahGCMode=traversal", Mode.PRODUCT);
  52 
  53         testWith("-XX:ShenandoahGCHeuristics=aggressive", Mode.DIAGNOSTIC);
  54         testWith("-XX:ShenandoahGCMode=passive", Mode.DIAGNOSTIC);
  55     }
  56 
  57     private static void testWith(String h, Mode mode) throws Exception {
  58         {
  59             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  60                     "-XX:-UnlockDiagnosticVMOptions",
  61                     "-XX:-UnlockExperimentalVMOptions",
  62                     "-XX:+UseShenandoahGC",
  63                     h,
  64                     "-version"
  65             );
  66             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  67             switch (mode) {
  68                 case PRODUCT:
  69                     output.shouldHaveExitValue(0);
  70                     break;
  71                 case DIAGNOSTIC:
  72                 case EXPERIMENTAL:
  73                     output.shouldNotHaveExitValue(0);
  74                     break;
  75             }
  76         }
  77 
  78         {
  79             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  80                     "-XX:+UnlockDiagnosticVMOptions",
  81                     "-XX:-UnlockExperimentalVMOptions",
  82                     "-XX:+UseShenandoahGC",
  83                     h,
  84                     "-version"
  85             );
  86             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  87             switch (mode) {
  88                 case PRODUCT:
  89                 case DIAGNOSTIC:
  90                     output.shouldHaveExitValue(0);
  91                     break;
  92                 case EXPERIMENTAL:
  93                     output.shouldNotHaveExitValue(0);
  94                     break;
  95             }
  96         }
  97 
  98         {
  99             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
 100                     "-XX:-UnlockDiagnosticVMOptions",
 101                     "-XX:+UnlockExperimentalVMOptions",
 102                     "-XX:+UseShenandoahGC",
 103                     h,
 104                     "-version"
 105             );
 106             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 107             switch (mode) {
 108                 case PRODUCT:
 109                 case EXPERIMENTAL:
 110                     output.shouldHaveExitValue(0);
 111                     break;
 112                 case DIAGNOSTIC:
 113                     output.shouldNotHaveExitValue(0);
 114                     break;
 115             }
 116         }
 117     }
 118 
 119 }