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