21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.jfr.api.metadata.eventtype;
  27 
  28 import java.io.ByteArrayOutputStream;
  29 import java.io.IOException;
  30 import java.io.InputStream;
  31 import java.nio.file.Path;
  32 
  33 import jdk.jfr.Event;
  34 import jdk.jfr.EventType;
  35 import jdk.jfr.FlightRecorder;
  36 import jdk.jfr.Recording;
  37 import jdk.jfr.consumer.RecordingFile;
  38 import jdk.jfr.internal.JVM;
  39 import jdk.test.lib.Utils;
  40 
  41 /*
  42  * @test
  43  * @key jfr
  44  * @summary Test that verifies event metadata is removed when an event class is unloaded.

  45  *
  46  * @library /test/lib
  47  * @modules jdk.jfr/jdk.jfr.internal
  48  *          java.base/jdk.internal.misc
  49  *
  50  * @run main/othervm -Xlog:class+unload -Xlog:gc jdk.jfr.api.metadata.eventtype.TestUnloadingEventClass
  51  */
  52 public class TestUnloadingEventClass {
  53 
  54     private static final String EVENT_NAME = "jdk.jfr.api.metadata.eventtype.TestUnloadingEventClass$ToBeUnloaded";
  55 
  56     public static class ToBeUnloaded extends Event {
  57     }
  58 
  59     static public class MyClassLoader extends ClassLoader {
  60         public MyClassLoader() {
  61             super("MyClassLoader", null);
  62         }
  63 
  64         public final Class<?> defineClass(String name, byte[] b) {

  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.jfr.api.metadata.eventtype;
  27 
  28 import java.io.ByteArrayOutputStream;
  29 import java.io.IOException;
  30 import java.io.InputStream;
  31 import java.nio.file.Path;
  32 
  33 import jdk.jfr.Event;
  34 import jdk.jfr.EventType;
  35 import jdk.jfr.FlightRecorder;
  36 import jdk.jfr.Recording;
  37 import jdk.jfr.consumer.RecordingFile;
  38 import jdk.jfr.internal.JVM;
  39 import jdk.test.lib.Utils;
  40 
  41 /**
  42  * @test
  43  * @key jfr
  44  * @summary Test that verifies event metadata is removed when an event class is unloaded.
  45  * @requires vm.hasJFR
  46  *
  47  * @library /test/lib
  48  * @modules jdk.jfr/jdk.jfr.internal
  49  *          java.base/jdk.internal.misc
  50  *
  51  * @run main/othervm -Xlog:class+unload -Xlog:gc jdk.jfr.api.metadata.eventtype.TestUnloadingEventClass
  52  */
  53 public class TestUnloadingEventClass {
  54 
  55     private static final String EVENT_NAME = "jdk.jfr.api.metadata.eventtype.TestUnloadingEventClass$ToBeUnloaded";
  56 
  57     public static class ToBeUnloaded extends Event {
  58     }
  59 
  60     static public class MyClassLoader extends ClassLoader {
  61         public MyClassLoader() {
  62             super("MyClassLoader", null);
  63         }
  64 
  65         public final Class<?> defineClass(String name, byte[] b) {