38 
  39 public class TestObjItrWithHeapDump {
  40     public static void testWith(String... args) throws Exception {
  41         String[] cmds = Arrays.copyOf(args, args.length + 2);
  42         cmds[args.length] = TestObjItrWithHeapDump.class.getName();
  43         cmds[args.length + 1] = "test";
  44         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds);
  45 
  46         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  47         output.shouldHaveExitValue(0);
  48         output.shouldContain("Class Histogram (before full gc)");
  49         output.shouldContain("Class Histogram (after full gc)");
  50     }
  51 
  52     public static void main(String[] args) throws Exception {
  53         if (args.length > 0 && args[0].equals("test")) {
  54             System.gc();
  55             System.exit(0);
  56         }
  57 
  58         String[] heuristics = new String[] {

  59                 "adaptive",
  60                 "compact",
  61                 "static",
  62                 "aggressive",
  63                 "passive",
  64                 "traversal",
  65         };
  66 



  67         for (String h : heuristics) {
  68             testWith("-XX:+UnlockDiagnosticVMOptions",
  69                      "-XX:+UnlockExperimentalVMOptions",
  70                      "-XX:+UseShenandoahGC",
  71                      "-XX:-ShenandoahDegeneratedGC",

  72                      "-XX:ShenandoahGCHeuristics=" + h,
  73                      "-Xlog:gc+classhisto=trace",
  74                      "-XX:-ExplicitGCInvokesConcurrent",
  75                      "-Xmx512M"
  76             );

  77         }
  78     }
  79 }

  38 
  39 public class TestObjItrWithHeapDump {
  40     public static void testWith(String... args) throws Exception {
  41         String[] cmds = Arrays.copyOf(args, args.length + 2);
  42         cmds[args.length] = TestObjItrWithHeapDump.class.getName();
  43         cmds[args.length + 1] = "test";
  44         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(cmds);
  45 
  46         OutputAnalyzer output = new OutputAnalyzer(pb.start());
  47         output.shouldHaveExitValue(0);
  48         output.shouldContain("Class Histogram (before full gc)");
  49         output.shouldContain("Class Histogram (after full gc)");
  50     }
  51 
  52     public static void main(String[] args) throws Exception {
  53         if (args.length > 0 && args[0].equals("test")) {
  54             System.gc();
  55             System.exit(0);
  56         }
  57 
  58         String[][][] modeHeuristics = new String[][][] {
  59              {{"normal"}, {
  60                  "adaptive",
  61                  "compact",
  62                  "static",
  63                  "aggressive"}},
  64             {{"traversal"}, {"adaptive"}},
  65             {{"passive"}, {"passive"}}
  66             };
  67 
  68         for (String[][] mh : modeHeuristics) {
  69             String mode = mh[0][0];
  70             String[] heuristics = mh[1];
  71             for (String h : heuristics) {
  72                 testWith("-XX:+UnlockDiagnosticVMOptions",
  73                          "-XX:+UnlockExperimentalVMOptions",
  74                          "-XX:+UseShenandoahGC",
  75                          "-XX:-ShenandoahDegeneratedGC",
  76                          "-XX:ShenandoahGCMode=" + mode,
  77                          "-XX:ShenandoahGCHeuristics=" + h,
  78                          "-Xlog:gc+classhisto=trace",
  79                          "-XX:-ExplicitGCInvokesConcurrent",
  80                          "-Xmx512M"
  81                 );
  82             }
  83         }
  84     }
  85 }