23 
  24 package gc.g1.humongousObjects;
  25 
  26 import gc.testlibrary.Helpers;
  27 import jdk.test.lib.Asserts;
  28 import sun.hotspot.WhiteBox;
  29 
  30 import java.io.IOException;
  31 import java.lang.reflect.InvocationTargetException;
  32 import java.net.URL;
  33 import java.net.URLClassLoader;
  34 import java.nio.file.Path;
  35 import java.nio.file.Paths;
  36 
  37 /**
  38  * @test gc.g1.humongousObjects.TestHumongousClassLoader
  39  * @summary Checks that unreachable classes and unreachable humongous class loader are unloaded after GC
  40  * @requires vm.gc.G1
  41  * @requires vm.opt.G1HeapRegionSize == "null" | vm.opt.G1HeapRegionSize == "1M"
  42  * @requires vm.opt.ExplicitGCInvokesConcurrent != true


  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  *
  50  * @run main/othervm/timeout=240  -Xms256M -Xmx256M -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  51  *                                gc.g1.humongousObjects.ClassLoaderGenerator 1
  52  *
  53  * @run main/othervm -Xms256M -Xmx256M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  54  *                   -Xlog:class+load,class+unload=debug:file=TestHumongousClassLoader_Full_GC.log
  55  *                   -XX:G1HeapRegionSize=1M
  56  *                   gc.g1.humongousObjects.TestHumongousClassLoader FULL_GC
  57  *
  58  * @run main/othervm -Xms256M -Xmx256M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  59  *                   -Xlog:class+load,class+unload=debug:file=TestHumongousClassLoader_Full_GC_Mem_Pressure.log
  60  *                   -XX:G1HeapRegionSize=1M
  61  *                   gc.g1.humongousObjects.TestHumongousClassLoader FULL_GC_MEMORY_PRESSURE
  62  *

  23 
  24 package gc.g1.humongousObjects;
  25 
  26 import gc.testlibrary.Helpers;
  27 import jdk.test.lib.Asserts;
  28 import sun.hotspot.WhiteBox;
  29 
  30 import java.io.IOException;
  31 import java.lang.reflect.InvocationTargetException;
  32 import java.net.URL;
  33 import java.net.URLClassLoader;
  34 import java.nio.file.Path;
  35 import java.nio.file.Paths;
  36 
  37 /**
  38  * @test gc.g1.humongousObjects.TestHumongousClassLoader
  39  * @summary Checks that unreachable classes and unreachable humongous class loader are unloaded after GC
  40  * @requires vm.gc.G1
  41  * @requires vm.opt.G1HeapRegionSize == "null" | vm.opt.G1HeapRegionSize == "1M"
  42  * @requires vm.opt.ExplicitGCInvokesConcurrent != true
  43  * @requires vm.opt.ClassUnloading  != false
  44  * @requires vm.opt.ClassUnloadingWithConcurrentMark  != false
  45  * @library /test/lib /
  46  * @modules java.base/jdk.internal.misc
  47  * @modules java.management
  48  * @build sun.hotspot.WhiteBox
  49  * @run driver ClassFileInstaller sun.hotspot.WhiteBox
  50  *                                sun.hotspot.WhiteBox$WhiteBoxPermission
  51  *
  52  * @run main/othervm/timeout=240  -Xms256M -Xmx256M -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  53  *                                gc.g1.humongousObjects.ClassLoaderGenerator 1
  54  *
  55  * @run main/othervm -Xms256M -Xmx256M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  56  *                   -Xlog:class+load,class+unload=debug:file=TestHumongousClassLoader_Full_GC.log
  57  *                   -XX:G1HeapRegionSize=1M
  58  *                   gc.g1.humongousObjects.TestHumongousClassLoader FULL_GC
  59  *
  60  * @run main/othervm -Xms256M -Xmx256M -XX:+UseG1GC -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -Xbootclasspath/a:.
  61  *                   -Xlog:class+load,class+unload=debug:file=TestHumongousClassLoader_Full_GC_Mem_Pressure.log
  62  *                   -XX:G1HeapRegionSize=1M
  63  *                   gc.g1.humongousObjects.TestHumongousClassLoader FULL_GC_MEMORY_PRESSURE
  64  *