1 /*
   2  * Copyright (c) 2020, 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 TestModeUnlock
  27  * @summary Test that Shenandoah modes 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 TestModeUnlock
  34  */
  35 
  36 import jdk.test.lib.process.ProcessTools;
  37 import jdk.test.lib.process.OutputAnalyzer;
  38 
  39 public class TestModeUnlock {
  40 
  41     enum Mode {
  42         PRODUCT,
  43         DIAGNOSTIC,
  44         EXPERIMENTAL,
  45     }
  46 
  47     public static void main(String[] args) throws Exception {
  48         testWith("-XX:ShenandoahGCMode=satb",    Mode.PRODUCT);
  49         testWith("-XX:ShenandoahGCMode=iu",      Mode.EXPERIMENTAL);
  50         testWith("-XX:ShenandoahGCMode=passive", Mode.DIAGNOSTIC);
  51     }
  52 
  53     private static void testWith(String h, Mode mode) throws Exception {
  54         {
  55             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  56                     "-XX:-UnlockDiagnosticVMOptions",
  57                     "-XX:-UnlockExperimentalVMOptions",
  58                     "-XX:+UseShenandoahGC",
  59                     h,
  60                     "-version"
  61             );
  62             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  63             switch (mode) {
  64                 case PRODUCT:
  65                     output.shouldHaveExitValue(0);
  66                     break;
  67                 case DIAGNOSTIC:
  68                 case EXPERIMENTAL:
  69                     output.shouldNotHaveExitValue(0);
  70                     break;
  71             }
  72         }
  73 
  74         {
  75             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  76                     "-XX:+UnlockDiagnosticVMOptions",
  77                     "-XX:-UnlockExperimentalVMOptions",
  78                     "-XX:+UseShenandoahGC",
  79                     h,
  80                     "-version"
  81             );
  82             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  83             switch (mode) {
  84                 case PRODUCT:
  85                 case DIAGNOSTIC:
  86                     output.shouldHaveExitValue(0);
  87                     break;
  88                 case EXPERIMENTAL:
  89                     output.shouldNotHaveExitValue(0);
  90                     break;
  91             }
  92         }
  93 
  94         {
  95             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  96                     "-XX:-UnlockDiagnosticVMOptions",
  97                     "-XX:+UnlockExperimentalVMOptions",
  98                     "-XX:+UseShenandoahGC",
  99                     h,
 100                     "-version"
 101             );
 102             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 103             switch (mode) {
 104                 case PRODUCT:
 105                 case EXPERIMENTAL:
 106                     output.shouldHaveExitValue(0);
 107                     break;
 108                 case DIAGNOSTIC:
 109                     output.shouldNotHaveExitValue(0);
 110                     break;
 111             }
 112         }
 113     }
 114 
 115 }