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 /testlibrary
  29  *
  30  * @run driver TestHeuristicsUnlock
  31  */
  32 
  33 import com.oracle.java.testlibrary.*;
  34 
  35 public class TestHeuristicsUnlock {
  36 
  37     enum Mode {
  38         PRODUCT,
  39         DIAGNOSTIC,
  40         EXPERIMENTAL,
  41     }
  42 
  43     public static void main(String[] args) throws Exception {
  44         testWith("-XX:ShenandoahGCHeuristics=adaptive",   Mode.PRODUCT);
  45         testWith("-XX:ShenandoahGCHeuristics=static",     Mode.PRODUCT);
  46         testWith("-XX:ShenandoahGCHeuristics=compact",    Mode.PRODUCT);
  47         testWith("-XX:ShenandoahGCHeuristics=aggressive", Mode.DIAGNOSTIC);
  48     }
  49 
  50     private static void testWith(String h, Mode mode) throws Exception {
  51         {
  52             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  53                     "-Xmx128m",
  54                     "-XX:-UnlockDiagnosticVMOptions",
  55                     "-XX:-UnlockExperimentalVMOptions",
  56                     "-XX:+UseShenandoahGC",
  57                     h,
  58                     "-version"
  59             );
  60             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  61             switch (mode) {
  62                 case PRODUCT:
  63                     output.shouldHaveExitValue(0);
  64                     break;
  65                 case DIAGNOSTIC:
  66                 case EXPERIMENTAL:
  67                     output.shouldHaveExitValue(1);
  68                     break;
  69             }
  70         }
  71 
  72         {
  73             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  74                     "-Xmx128m",
  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.shouldHaveExitValue(1);
  89                     break;
  90             }
  91         }
  92 
  93         {
  94             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  95                     "-Xmx128m",
  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.shouldHaveExitValue(1);
 110                     break;
 111             }
 112         }
 113     }
 114 
 115 }