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
 27  * @summary Test that Shenandoah modes are unlocked properly
 28  * @requires vm.gc.Shenandoah
 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=passive", Mode.DIAGNOSTIC);
 49     }
 50 
 51     private static void testWith(String h, Mode mode) throws Exception {
 52         {
 53             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
 54                     "-Xmx128m",
 55                     "-XX:-UnlockDiagnosticVMOptions",
 56                     "-XX:-UnlockExperimentalVMOptions",
 57                     "-XX:+UseShenandoahGC",
 58                     h,
 59                     "-version"
 60             );
 61             switch (mode) {
 62                 case PRODUCT:
 63                     output.shouldHaveExitValue(0);
 64                     break;
 65                 case DIAGNOSTIC:
 66                 case EXPERIMENTAL:
 67                     output.shouldNotHaveExitValue(0);
 68                     break;
 69             }
 70         }
 71 
 72         {
 73             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
 74                     "-Xmx128m",
 75                     "-XX:+UnlockDiagnosticVMOptions",
 76                     "-XX:-UnlockExperimentalVMOptions",
 77                     "-XX:+UseShenandoahGC",
 78                     h,
 79                     "-version"
 80             );
 81             switch (mode) {
 82                 case PRODUCT:
 83                 case DIAGNOSTIC:
 84                     output.shouldHaveExitValue(0);
 85                     break;
 86                 case EXPERIMENTAL:
 87                     output.shouldNotHaveExitValue(0);
 88                     break;
 89             }
 90         }
 91 
 92         {
 93             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
 94                     "-Xmx128m",
 95                     "-XX:-UnlockDiagnosticVMOptions",
 96                     "-XX:+UnlockExperimentalVMOptions",
 97                     "-XX:+UseShenandoahGC",
 98                     h,
 99                     "-version"
100             );
101             switch (mode) {
102                 case PRODUCT:
103                 case EXPERIMENTAL:
104                     output.shouldHaveExitValue(0);
105                     break;
106                 case DIAGNOSTIC:
107                     output.shouldNotHaveExitValue(0);
108                     break;
109             }
110         }
111     }
112 
113 }