test/serviceability/tmtools/jstat/GcCauseTest02.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2017, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.

@@ -29,31 +29,31 @@
  *          jstat should show that ~70% of heap (OC/OU ~= 70%).
  * @requires vm.opt.ExplicitGCInvokesConcurrent != true
  * @modules java.base/jdk.internal.misc
  * @library /test/lib
  * @library ../share
- * @run main/othervm -XX:+UsePerfData -XX:InitialHeapSize=128M -XX:MaxHeapSize=128M -XX:MaxMetaspaceSize=128M GcCauseTest02
+ * @run main/othervm -XX:+UsePerfData -XX:NewSize=4m -XX:InitialHeapSize=128M -XX:MaxHeapSize=128M -XX:MaxMetaspaceSize=128M GcCauseTest02
  */
 import utils.*;
 
 public class GcCauseTest02 {
 
     private final static float targetMemoryUsagePercent = 0.7f;
 
     public static void main(String[] args) throws Exception {
 
+        GarbageProducer gp = new GarbageProducer(targetMemoryUsagePercent);
+
         // We will be running "jstat -gc" tool
         JstatGcCauseTool jstatGcTool = new JstatGcCauseTool(ProcessHandle.current().getPid());
 
         // Run once and get the  results asserting that they are reasonable
         JstatGcCauseResults measurement1 = jstatGcTool.measure();
         measurement1.assertConsistency();
 
-        GcProvoker gcProvoker = new GcProvoker();
-
         // Eat metaspace and heap then run the tool again and get the results  asserting that they are reasonable
-        gcProvoker.allocateAvailableMetaspaceAndHeap(targetMemoryUsagePercent);
+        gp.allocateMetaspaceAndHeap();
         // Collect garbage. Also update VM statistics
         System.gc();
         JstatGcCauseResults measurement2 = jstatGcTool.measure();
         measurement2.assertConsistency();