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  * @library /test/lib
  29  * @modules java.base/jdk.internal.misc
  30  *          java.management
  31  * @run driver TestHeuristicsUnlock
  32  */
  33 
  34 import jdk.test.lib.process.ProcessTools;
  35 import jdk.test.lib.process.OutputAnalyzer;
  36 
  37 public class TestHeuristicsUnlock {
  38 
  39     enum Mode {
  40         PRODUCT,
  41         DIAGNOSTIC,
  42         EXPERIMENTAL,
  43     }
  44 
  45     public static void main(String[] args) throws Exception {
  46         testWith("adaptive",        Mode.PRODUCT);
  47         testWith("static",          Mode.PRODUCT);
  48         testWith("compact",         Mode.PRODUCT);
  49 
  50         testWith("traversal",       Mode.EXPERIMENTAL);
  51 
  52         testWith("aggressive",      Mode.DIAGNOSTIC);
  53         testWith("passive",         Mode.DIAGNOSTIC);
  54     }
  55 
  56     private static void testWith(String h, Mode mode) throws Exception {
  57         if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test
  58             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  59                                     "-XX:-UnlockDiagnosticVMOptions",
  60                                     "-XX:-UnlockExperimentalVMOptions",
  61                                     "-XX:+UseShenandoahGC",
  62                                     "-XX:ShenandoahGCHeuristics=" + h,
  63                                     "-version"
  64             );
  65             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  66             switch (mode) {
  67                 case PRODUCT:
  68                     output.shouldHaveExitValue(0);
  69                     break;
  70                 case DIAGNOSTIC:
  71                 case EXPERIMENTAL:
  72                     output.shouldNotHaveExitValue(0);
  73                     break;
  74             }
  75         }
  76 
  77         if (false) { // When ShenandoahGC is experimental flag, this makes no sense to test
  78             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  79                                     "-XX:+UnlockDiagnosticVMOptions",
  80                                     "-XX:-UnlockExperimentalVMOptions",
  81                                     "-XX:+UseShenandoahGC",
  82                                     "-XX:ShenandoahGCHeuristics=" + h,
  83                                     "-version"
  84             );
  85             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  86             switch (mode) {
  87                 case PRODUCT:
  88                 case DIAGNOSTIC:
  89                     output.shouldHaveExitValue(0);
  90                     break;
  91                 case EXPERIMENTAL:
  92                     output.shouldNotHaveExitValue(0);
  93                     break;
  94             }
  95         }
  96 
  97         {
  98             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  99                                     "-XX:-UnlockDiagnosticVMOptions",
 100                                     "-XX:+UnlockExperimentalVMOptions",
 101                                     "-XX:+UseShenandoahGC",
 102                                     "-XX:ShenandoahGCHeuristics=" + h,
 103                                     "-version"
 104             );
 105             OutputAnalyzer output = new OutputAnalyzer(pb.start());
 106             switch (mode) {
 107                 case PRODUCT:
 108                 case EXPERIMENTAL:
 109                     output.shouldHaveExitValue(0);
 110                     break;
 111                 case DIAGNOSTIC:
 112                     output.shouldNotHaveExitValue(0);
 113                     break;
 114             }
 115         }
 116     }
 117 
 118 }