57 
  58         testSurvivorRatio(3, options);
  59         testSurvivorRatio(6, options);
  60         testSurvivorRatio(10, options);
  61         testSurvivorRatio(15, options);
  62         testSurvivorRatio(20, options);
  63     }
  64 
  65     /**
  66      * Verify that actual survivor ratio equal to specified.
  67      *
  68      * @param ratio survivor ratio that be verified
  69      * @param options additional options to JVM
  70      */
  71     public static void testSurvivorRatio(int ratio, LinkedList<String> options) throws Exception {
  72 
  73         LinkedList<String> vmOptions = new LinkedList<>(options);
  74 
  75         Collections.addAll(vmOptions,
  76                 "-Xbootclasspath/a:.",
  77                 "-XaddExports:java.base/jdk.internal.misc=ALL-UNNAMED",
  78                 "-XX:+UnlockDiagnosticVMOptions",
  79                 "-XX:+WhiteBoxAPI",
  80                 "-XX:GCLockerEdenExpansionPercent=0",
  81                 "-XX:MaxNewSize=" + NEW_SIZE,
  82                 "-XX:NewSize=" + NEW_SIZE,
  83                 "-Xmx" + HEAP_SIZE,
  84                 "-Xms" + HEAP_SIZE,
  85                 "-XX:SurvivorRatio=" + ratio,
  86                 SurvivorRatioVerifier.class.getName(),
  87                 Integer.toString(ratio)
  88         );
  89 
  90         ProcessBuilder procBuilder = ProcessTools.createJavaProcessBuilder(vmOptions.toArray(new String[vmOptions.size()]));
  91         OutputAnalyzer analyzer = new OutputAnalyzer(procBuilder.start());
  92         analyzer.shouldHaveExitValue(0);
  93     }
  94 
  95     /**
  96      * Class that verifies survivor ratio.
  97      */

  57 
  58         testSurvivorRatio(3, options);
  59         testSurvivorRatio(6, options);
  60         testSurvivorRatio(10, options);
  61         testSurvivorRatio(15, options);
  62         testSurvivorRatio(20, options);
  63     }
  64 
  65     /**
  66      * Verify that actual survivor ratio equal to specified.
  67      *
  68      * @param ratio survivor ratio that be verified
  69      * @param options additional options to JVM
  70      */
  71     public static void testSurvivorRatio(int ratio, LinkedList<String> options) throws Exception {
  72 
  73         LinkedList<String> vmOptions = new LinkedList<>(options);
  74 
  75         Collections.addAll(vmOptions,
  76                 "-Xbootclasspath/a:.",
  77                 "--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED",
  78                 "-XX:+UnlockDiagnosticVMOptions",
  79                 "-XX:+WhiteBoxAPI",
  80                 "-XX:GCLockerEdenExpansionPercent=0",
  81                 "-XX:MaxNewSize=" + NEW_SIZE,
  82                 "-XX:NewSize=" + NEW_SIZE,
  83                 "-Xmx" + HEAP_SIZE,
  84                 "-Xms" + HEAP_SIZE,
  85                 "-XX:SurvivorRatio=" + ratio,
  86                 SurvivorRatioVerifier.class.getName(),
  87                 Integer.toString(ratio)
  88         );
  89 
  90         ProcessBuilder procBuilder = ProcessTools.createJavaProcessBuilder(vmOptions.toArray(new String[vmOptions.size()]));
  91         OutputAnalyzer analyzer = new OutputAnalyzer(procBuilder.start());
  92         analyzer.shouldHaveExitValue(0);
  93     }
  94 
  95     /**
  96      * Class that verifies survivor ratio.
  97      */