1 /*
   2  * Copyright (c) 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 /* @test TestWrongBarrierDisable
  25  * @summary Test that disabling wrong barriers fails early
  26  * @key gc
  27  * @requires vm.gc.Shenandoah & !vm.graal.enabled
  28  * @library /test/lib
  29  * @run main/othervm TestWrongBarrierDisable
  30  */
  31 
  32 import java.util.*;
  33 
  34 import jdk.test.lib.process.ProcessTools;
  35 import jdk.test.lib.process.OutputAnalyzer;
  36 
  37 public class TestWrongBarrierDisable {
  38 
  39     public static void main(String[] args) throws Exception {
  40         String[] concurrent = {
  41                 "ShenandoahLoadRefBarrier",
  42                 "ShenandoahCASBarrier",
  43                 "ShenandoahCloneBarrier",
  44                 "ShenandoahSATBBarrier",
  45                 "ShenandoahKeepAliveBarrier",
  46         };
  47 
  48         String[] traversal = {
  49                 "ShenandoahLoadRefBarrier",
  50                 "ShenandoahCASBarrier",
  51                 "ShenandoahCloneBarrier",
  52         };
  53 
  54         shouldFailAll("adaptive",   concurrent);
  55         shouldFailAll("static",     concurrent);
  56         shouldFailAll("compact",    concurrent);
  57         shouldFailAll("aggressive", concurrent);
  58         shouldFailAll("traversal",  traversal);
  59         shouldPassAll("passive",    concurrent);
  60         shouldPassAll("passive",    traversal);
  61     }
  62 
  63     private static void shouldFailAll(String h, String[] barriers) throws Exception {
  64         for (String b : barriers) {
  65             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  66                     "-XX:+UnlockDiagnosticVMOptions",
  67                     "-XX:+UnlockExperimentalVMOptions",
  68                     "-XX:+UseShenandoahGC",
  69                     "-XX:ShenandoahGCHeuristics=" + h,
  70                     "-XX:-" + b,
  71                     "-version"
  72             );
  73             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  74             output.shouldNotHaveExitValue(0);
  75             output.shouldContain("Heuristics needs ");
  76             output.shouldContain("to work correctly");
  77         }
  78     }
  79 
  80     private static void shouldPassAll(String h, String[] barriers) throws Exception {
  81         for (String b : barriers) {
  82             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  83                     "-XX:+UnlockDiagnosticVMOptions",
  84                     "-XX:+UnlockExperimentalVMOptions",
  85                     "-XX:+UseShenandoahGC",
  86                     "-XX:ShenandoahGCHeuristics=" + h,
  87                     "-XX:-" + b,
  88                     "-version"
  89             );
  90             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  91             output.shouldHaveExitValue(0);
  92         }
  93     }
  94 
  95 }