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=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             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
 55                     "-Xmx128m",
 56                     "-XX:-UnlockDiagnosticVMOptions",
 57                     "-XX:-UnlockExperimentalVMOptions",
 58                     "-XX:+UseShenandoahGC",
 59                     h,
 60                     "-version"
 61             );
 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             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
 75                     "-Xmx128m",
 76                     "-XX:+UnlockDiagnosticVMOptions",
 77                     "-XX:-UnlockExperimentalVMOptions",
 78                     "-XX:+UseShenandoahGC",
 79                     h,
 80                     "-version"
 81             );
 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             OutputAnalyzer output = ProcessTools.executeLimitedTestJava(
 95                     "-Xmx128m",
 96                     "-XX:-UnlockDiagnosticVMOptions",
 97                     "-XX:+UnlockExperimentalVMOptions",
 98                     "-XX:+UseShenandoahGC",
 99                     h,
100                     "-version"
101             );
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 }