test/hotspot/jtreg/vmTestbase/gc/memory/FillingStation/FillingStation.java

rev 59093 : [mq]: randomness-code_vmTestbase_gc
rev 59094 : imported patch randomness-keyword_vmTestbase_gc
rev 59095 : imported patch 8243430.00

*** 1,7 ****
  /*
!  * Copyright (c) 2002, 2018, 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.
--- 1,7 ----
  /*
!  * Copyright (c) 2002, 2020, 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.
*** 21,31 ****
   * questions.
   */
  
  /*
   * @test
!  * @key stress gc
   *
   * @summary converted from VM Testbase gc/memory/FillingStation.
   * VM Testbase keywords: [gc, stress, nonconcurrent]
   *
   * @library /vmTestbase
--- 21,31 ----
   * questions.
   */
  
  /*
   * @test
!  * @key stress gc randomness
   *
   * @summary converted from VM Testbase gc/memory/FillingStation.
   * VM Testbase keywords: [gc, stress, nonconcurrent]
   *
   * @library /vmTestbase
*** 34,43 ****
--- 34,46 ----
   * @run main/othervm gc.memory.FillingStation.FillingStation
   */
  
  package gc.memory.FillingStation;
  
+ import jdk.test.lib.Utils;
+ import java.util.Random;
+ 
  public class FillingStation {
  
      public static final long minObjectSize  = 4;
      public static final long freeSpaceLimit = 64;
      public static final long maxObjectSize  = 32*1024;
*** 75,85 ****
      }
  
      public static void fill() {
          boolean _overflow = false;
          Runtime rt = java.lang.Runtime.getRuntime();
!         java.util.Random stream = new java.util.Random();
          Space next = null;
          try {
              for (long available = rt.freeMemory();
                   available > freeSpaceLimit;
                   available = rt.freeMemory()) {
--- 78,88 ----
      }
  
      public static void fill() {
          boolean _overflow = false;
          Runtime rt = java.lang.Runtime.getRuntime();
!         Random stream = Utils.getRandomInstance();
          Space next = null;
          try {
              for (long available = rt.freeMemory();
                   available > freeSpaceLimit;
                   available = rt.freeMemory()) {