39     public static void main(String[] args) throws Exception {
  40         String[] concurrent = {
  41                 "ShenandoahStoreValEnqueueBarrier",
  42         };
  43         String[] iu = {
  44                 "ShenandoahSATBBarrier",
  45         };
  46 
  47         shouldFailAll("-XX:ShenandoahGCHeuristics=adaptive",   concurrent);
  48         shouldFailAll("-XX:ShenandoahGCHeuristics=static",     concurrent);
  49         shouldFailAll("-XX:ShenandoahGCHeuristics=compact",    concurrent);
  50         shouldFailAll("-XX:ShenandoahGCHeuristics=aggressive", concurrent);
  51         shouldFailAll("-XX:ShenandoahGCMode=iu",               iu);
  52         shouldPassAll("-XX:ShenandoahGCMode=passive",          concurrent);
  53         shouldPassAll("-XX:ShenandoahGCMode=passive",          iu);
  54     }
  55 
  56     private static void shouldFailAll(String h, String[] barriers) throws Exception {
  57         for (String b : barriers) {
  58             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(

  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.shouldNotHaveExitValue(0);
  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                     "-XX:+UnlockDiagnosticVMOptions",
  77                     "-XX:+UnlockExperimentalVMOptions",
  78                     "-XX:+UseShenandoahGC",
  79                     h,
  80                     "-XX:+" + b,
  81                     "-version"
  82             );
  83             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  84             output.shouldHaveExitValue(0);
  85         }
  86     }
  87 
  88 }

  39     public static void main(String[] args) throws Exception {
  40         String[] concurrent = {
  41                 "ShenandoahStoreValEnqueueBarrier",
  42         };
  43         String[] iu = {
  44                 "ShenandoahSATBBarrier",
  45         };
  46 
  47         shouldFailAll("-XX:ShenandoahGCHeuristics=adaptive",   concurrent);
  48         shouldFailAll("-XX:ShenandoahGCHeuristics=static",     concurrent);
  49         shouldFailAll("-XX:ShenandoahGCHeuristics=compact",    concurrent);
  50         shouldFailAll("-XX:ShenandoahGCHeuristics=aggressive", concurrent);
  51         shouldFailAll("-XX:ShenandoahGCMode=iu",               iu);
  52         shouldPassAll("-XX:ShenandoahGCMode=passive",          concurrent);
  53         shouldPassAll("-XX:ShenandoahGCMode=passive",          iu);
  54     }
  55 
  56     private static void shouldFailAll(String h, String[] barriers) throws Exception {
  57         for (String b : barriers) {
  58             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  59                     "-Xmx128m",
  60                     "-XX:+UnlockDiagnosticVMOptions",
  61                     "-XX:+UnlockExperimentalVMOptions",
  62                     "-XX:+UseShenandoahGC",
  63                     h,
  64                     "-XX:+" + b,
  65                     "-version"
  66             );
  67             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  68             output.shouldNotHaveExitValue(0);
  69             output.shouldContain("GC mode needs ");
  70             output.shouldContain("to work correctly");
  71         }
  72     }
  73 
  74     private static void shouldPassAll(String h, String[] barriers) throws Exception {
  75         for (String b : barriers) {
  76             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
  77                     "-Xmx128m",
  78                     "-XX:+UnlockDiagnosticVMOptions",
  79                     "-XX:+UnlockExperimentalVMOptions",
  80                     "-XX:+UseShenandoahGC",
  81                     h,
  82                     "-XX:+" + b,
  83                     "-version"
  84             );
  85             OutputAnalyzer output = new OutputAnalyzer(pb.start());
  86             output.shouldHaveExitValue(0);
  87         }
  88     }
  89 
  90 }