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test/gc/g1/humongousObjects/TestHumongousNonArrayAllocation.java

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  22  *
  23  */
  24 
  25 package gc.g1.humongousObjects;
  26 
  27 import jdk.test.lib.Asserts;
  28 import sun.hotspot.WhiteBox;
  29 
  30 import java.io.IOException;
  31 import java.net.URL;
  32 import java.net.URLClassLoader;
  33 import java.nio.file.Files;
  34 import java.nio.file.Path;
  35 import java.nio.file.Paths;
  36 
  37 /**
  38  * @test gc.g1.humongousObjects.TestHumongousNonArrayAllocation
  39  * @summary Checks that huge class' instances (ie with huge amount of fields) are allocated successfully
  40  * @requires vm.gc.G1
  41  * @requires vm.opt.G1HeapRegionSize == "null" | vm.opt.G1HeapRegionSize == "1M"
  42  * @library /testlibrary /test/lib /
  43  * @modules java.base/jdk.internal.misc
  44  * @modules java.management
  45  * @build sun.hotspot.WhiteBox
  46  *        gc.testlibrary.Helpers
  47  *        gc.g1.humongousObjects.G1SampleClass
  48  *        gc.g1.humongousObjects.TestHumongousNonArrayAllocation
  49  *
  50  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  51  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  52  *
  53  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  54  *                   -XX:G1HeapRegionSize=1M
  55  *                   gc.g1.humongousObjects.TestHumongousNonArrayAllocation LARGEST_NON_HUMONGOUS
  56  *
  57  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  58  *                   -XX:G1HeapRegionSize=1M
  59  *                   gc.g1.humongousObjects.TestHumongousNonArrayAllocation SMALLEST_HUMONGOUS
  60  *
  61  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  62  *                   -XX:G1HeapRegionSize=1M
  63  *                   gc.g1.humongousObjects.TestHumongousNonArrayAllocation ONE_REGION_HUMONGOUS
  64  *
  65  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  66  *                   -XX:G1HeapRegionSize=1M
  67  *                   gc.g1.humongousObjects.TestHumongousNonArrayAllocation TWO_REGION_HUMONGOUS
  68  *
  69  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.




  22  *
  23  */
  24 
  25 package gc.g1.humongousObjects;
  26 
  27 import jdk.test.lib.Asserts;
  28 import sun.hotspot.WhiteBox;
  29 
  30 import java.io.IOException;
  31 import java.net.URL;
  32 import java.net.URLClassLoader;
  33 import java.nio.file.Files;
  34 import java.nio.file.Path;
  35 import java.nio.file.Paths;
  36 
  37 /**
  38  * @test gc.g1.humongousObjects.TestHumongousNonArrayAllocation
  39  * @summary Checks that huge class' instances (ie with huge amount of fields) are allocated successfully
  40  * @requires vm.gc.G1
  41  * @requires vm.opt.G1HeapRegionSize == "null" | vm.opt.G1HeapRegionSize == "1M"
  42  * @library /test/lib /
  43  * @modules java.base/jdk.internal.misc
  44  * @modules java.management
  45  * @build sun.hotspot.WhiteBox




  46  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  47  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  48  *
  49  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  50  *                   -XX:G1HeapRegionSize=1M
  51  *                   gc.g1.humongousObjects.TestHumongousNonArrayAllocation LARGEST_NON_HUMONGOUS
  52  *
  53  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  54  *                   -XX:G1HeapRegionSize=1M
  55  *                   gc.g1.humongousObjects.TestHumongousNonArrayAllocation SMALLEST_HUMONGOUS
  56  *
  57  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  58  *                   -XX:G1HeapRegionSize=1M
  59  *                   gc.g1.humongousObjects.TestHumongousNonArrayAllocation ONE_REGION_HUMONGOUS
  60  *
  61  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  62  *                   -XX:G1HeapRegionSize=1M
  63  *                   gc.g1.humongousObjects.TestHumongousNonArrayAllocation TWO_REGION_HUMONGOUS
  64  *
  65  * @run main/othervm -Xms128M -Xmx128M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.


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