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
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  24 
  25 /* @test TestWrongBarrierEnable
  26  * @summary Test that disabling wrong barriers fails early
  27  * @key gc
  28  * @library /testlibrary
  29  * @run main/othervm TestWrongBarrierEnable
  30  */
  31 
  32 import java.util.*;
  33 
  34 import com.oracle.java.testlibrary.*;
  35 
  36 public class TestWrongBarrierEnable {
  37 
  38     public static void main(String[] args) throws Exception {
  39         String[] concurrent = {
  40                 "ShenandoahStoreValEnqueueBarrier",
  41         };
  42         String[] iu = {
  43                 "ShenandoahSATBBarrier",
  44         };
  45 
  46         shouldFailAll("-XX:ShenandoahGCHeuristics=adaptive",   concurrent);
  47         shouldFailAll("-XX:ShenandoahGCHeuristics=static",     concurrent);
  48         shouldFailAll("-XX:ShenandoahGCHeuristics=compact",    concurrent);
  49         shouldFailAll("-XX:ShenandoahGCHeuristics=aggressive", concurrent);
  50         shouldFailAll("-XX:ShenandoahGCMode=iu",               iu);
  51         shouldPassAll("-XX:ShenandoahGCMode=passive",          concurrent);
  52         shouldPassAll("-XX:ShenandoahGCMode=passive",          iu);
  53     }
  54 
  55     private static void shouldFailAll(String h, String[] barriers) throws Exception {
  56         for (String b : barriers) {
  57             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  58                     "-Xmx128m",
  59                     "-XX:+UnlockDiagnosticVMOptions",
  60                     "-XX:+UnlockExperimentalVMOptions",
  61                     "-XX:+UseShenandoahGC",
  62                     h,
  63                     "-XX:+" + b,
  64                     "-version"
  65             );
  66             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  67             output.shouldHaveExitValue(1);
  68             output.shouldContain("GC mode needs ");
  69             output.shouldContain("to work correctly");
  70         }
  71     }
  72 
  73     private static void shouldPassAll(String h, String[] barriers) throws Exception {
  74         for (String b : barriers) {
  75             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  76                     "-Xmx128m",
  77                     "-XX:+UnlockDiagnosticVMOptions",
  78                     "-XX:+UnlockExperimentalVMOptions",
  79                     "-XX:+UseShenandoahGC",
  80                     h,
  81                     "-XX:+" + b,
  82                     "-version"
  83             );
  84             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  85             output.shouldHaveExitValue(0);
  86         }
  87     }
  88 
  89 }