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test/gc/g1/humongousObjects/TestHumongousMovement.java

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  23  */
  24 
  25 package gc.g1.humongousObjects;
  26 
  27 import gc.testlibrary.Helpers;
  28 import jdk.test.lib.Asserts;
  29 import jdk.test.lib.Utils;
  30 import sun.hotspot.WhiteBox;
  31 
  32 import java.io.PrintStream;
  33 import java.math.BigInteger;
  34 import java.util.ArrayList;
  35 import java.util.List;
  36 import java.util.Random;
  37 import java.util.stream.Collectors;
  38 
  39 /**
  40  * @test TestHumongousMovement
  41  * @summary Checks that Humongous objects are not moved during GC
  42  * @requires vm.gc.G1
  43  * @library /testlibrary /test/lib /
  44  * @modules java.base/jdk.internal.misc
  45  * @modules java.management
  46  * @build sun.hotspot.WhiteBox
  47  *        gc.testlibrary.Helpers
  48  *        gc.g1.humongousObjects.TestHumongousMovement
  49  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  50  *      sun.hotspot.WhiteBox$WhiteBoxPermission
  51  * @run main/othervm -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  52  *                   -XX:G1HeapRegionSize=1M -Xms200m -Xmx200m -XX:InitiatingHeapOccupancyPercent=100
  53  *                   -Xlog:gc=info:file=TestHumongousMovement.log
  54  *                   gc.g1.humongousObjects.TestHumongousMovement
  55  */
  56 
  57 public class TestHumongousMovement {
  58 
  59     private static class AllocationData {
  60         private final byte[] allocation;
  61         public final BigInteger objectAddress;
  62 
  63         public AllocationData(byte[] byteArray) {
  64             allocation = byteArray;
  65             objectAddress = new BigInteger(Long.toUnsignedString((WB.getObjectAddress(allocation))));
  66         }
  67 
  68         public boolean isAddressChanged() {




  23  */
  24 
  25 package gc.g1.humongousObjects;
  26 
  27 import gc.testlibrary.Helpers;
  28 import jdk.test.lib.Asserts;
  29 import jdk.test.lib.Utils;
  30 import sun.hotspot.WhiteBox;
  31 
  32 import java.io.PrintStream;
  33 import java.math.BigInteger;
  34 import java.util.ArrayList;
  35 import java.util.List;
  36 import java.util.Random;
  37 import java.util.stream.Collectors;
  38 
  39 /**
  40  * @test TestHumongousMovement
  41  * @summary Checks that Humongous objects are not moved during GC
  42  * @requires vm.gc.G1
  43  * @library /test/lib /
  44  * @modules java.base/jdk.internal.misc
  45  * @modules java.management
  46  * @build sun.hotspot.WhiteBox


  47  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  48  *      sun.hotspot.WhiteBox$WhiteBoxPermission
  49  * @run main/othervm -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  50  *                   -XX:G1HeapRegionSize=1M -Xms200m -Xmx200m -XX:InitiatingHeapOccupancyPercent=100
  51  *                   -Xlog:gc=info:file=TestHumongousMovement.log
  52  *                   gc.g1.humongousObjects.TestHumongousMovement
  53  */
  54 
  55 public class TestHumongousMovement {
  56 
  57     private static class AllocationData {
  58         private final byte[] allocation;
  59         public final BigInteger objectAddress;
  60 
  61         public AllocationData(byte[] byteArray) {
  62             allocation = byteArray;
  63             objectAddress = new BigInteger(Long.toUnsignedString((WB.getObjectAddress(allocation))));
  64         }
  65 
  66         public boolean isAddressChanged() {


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