1 /*
   2  * Copyright (c) 2018, 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 /* @test TestWrongBarrierDisable
  26  * @summary Test that disabling wrong barriers fails early
  27  * @key gc
  28  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  29  * @library /test/lib
  30  * @run main/othervm TestWrongBarrierDisable
  31  */
  32 
  33 import java.util.*;
  34 
  35 import jdk.test.lib.process.ProcessTools;
  36 import jdk.test.lib.process.OutputAnalyzer;
  37 
  38 public class TestWrongBarrierDisable {
  39 
  40     public static void main(String[] args) throws Exception {
  41         String[] concurrent = {
  42                 "ShenandoahLoadRefBarrier",
  43                 "ShenandoahSATBBarrier",
  44                 "ShenandoahCASBarrier",
  45                 "ShenandoahCloneBarrier",
  46         };
  47         String[] iu = {
  48                 "ShenandoahLoadRefBarrier",
  49                 "ShenandoahCASBarrier",
  50                 "ShenandoahCloneBarrier",
  51         };
  52 
  53         shouldFailAll("-XX:ShenandoahGCHeuristics=adaptive",   concurrent);
  54         shouldFailAll("-XX:ShenandoahGCHeuristics=static",     concurrent);
  55         shouldFailAll("-XX:ShenandoahGCHeuristics=compact",    concurrent);
  56         shouldFailAll("-XX:ShenandoahGCHeuristics=aggressive", concurrent);
  57         shouldFailAll("-XX:ShenandoahGCMode=iu",               iu);
  58         shouldPassAll("-XX:ShenandoahGCMode=passive",          concurrent);
  59         shouldPassAll("-XX:ShenandoahGCMode=passive",          iu);
  60     }
  61 
  62     private static void shouldFailAll(String h, String[] barriers) throws Exception {
  63         for (String b : barriers) {
  64             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  65                     "-XX:+UnlockDiagnosticVMOptions",
  66                     "-XX:+UnlockExperimentalVMOptions",
  67                     "-XX:+UseShenandoahGC",
  68                     h,
  69                     "-XX:-" + b,
  70                     "-version"
  71             );
  72             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  73             output.shouldNotHaveExitValue(0);
  74             output.shouldContain("Heuristics needs ");
  75             output.shouldContain("to work correctly");
  76         }
  77     }
  78 
  79     private static void shouldPassAll(String h, String[] barriers) throws Exception {
  80         for (String b : barriers) {
  81             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  82                     "-XX:+UnlockDiagnosticVMOptions",
  83                     "-XX:+UnlockExperimentalVMOptions",
  84                     "-XX:+UseShenandoahGC",
  85                     h,
  86                     "-XX:-" + b,
  87                     "-version"
  88             );
  89             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  90             output.shouldHaveExitValue(0);
  91         }
  92     }
  93 
  94 }