test/hotspot/jtreg/vmTestbase/gc/memory/LargePagesTest/LargePagesTest.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) 2013, 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) 2013, 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/LargePagesTest.
   * VM Testbase keywords: [gc, stress, stressopt]
   *
   * @library /vmTestbase
--- 21,31 ----
   * questions.
   */
  
  /*
   * @test
!  * @key stress gc randomness
   *
   * @summary converted from VM Testbase gc/memory/LargePagesTest.
   * VM Testbase keywords: [gc, stress, stressopt]
   *
   * @library /vmTestbase
*** 35,45 ****
   */
  
  package gc.memory.LargePagesTest;
  
  import java.io.PrintStream;
! import java.util.Random;
  
  /*
   * Allocators purpose is to create pressure on the garbage collector
   * for a certain amount of time.
   * Note: this test moved from the "jr", the original name is func.vm.largepages.LargePagesTest
--- 35,45 ----
   */
  
  package gc.memory.LargePagesTest;
  
  import java.io.PrintStream;
! import nsk.share.test.LocalRandom;
  
  /*
   * Allocators purpose is to create pressure on the garbage collector
   * for a certain amount of time.
   * Note: this test moved from the "jr", the original name is func.vm.largepages.LargePagesTest
*** 156,183 ****
              result = true;
          }
      }
  
      private void allocate() {
- 
-         Random r = new Random();
          for (int j = 0; j < 1000; j++) {
-             r = new Random();
              int i = 0;
  
              switch (myType) {
              case SMALL_OBJECT_ALLOCATER:
                  i = 5;
                  break;
              case LARGE_OBJECT_ALLOCATER:
                  i = 1;
                  break;
              case ANY_OBJECT_ALLOCATER:
!                 i = r.nextInt(100);
                  break;
              case ANY_NO_MULTIARRAYS_ALLOCATER:
!                 i = r.nextInt(100);
                  if ((i >= 2) && (i <= 4)) {
                      i = 5;
                  }
                  break;
              default:
--- 156,180 ----
              result = true;
          }
      }
  
      private void allocate() {
          for (int j = 0; j < 1000; j++) {
              int i = 0;
  
              switch (myType) {
              case SMALL_OBJECT_ALLOCATER:
                  i = 5;
                  break;
              case LARGE_OBJECT_ALLOCATER:
                  i = 1;
                  break;
              case ANY_OBJECT_ALLOCATER:
!                 i = LocalRandom.nextInt(100);
                  break;
              case ANY_NO_MULTIARRAYS_ALLOCATER:
!                 i = LocalRandom.nextInt(100);
                  if ((i >= 2) && (i <= 4)) {
                      i = 5;
                  }
                  break;
              default: