src/share/classes/sun/management/ExtendedPlatformComponent.java

rev 13489 : 8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling

*** 23,35 ****
--- 23,38 ----
   * questions.
   */
  
  package sun.management;
  
+ import java.lang.reflect.InvocationTargetException;
+ import java.util.Collection;
  import java.util.Collections;
  import java.util.List;
  import java.lang.management.PlatformManagedObject;
+ import java.lang.reflect.Method;
  
  /**
   * Class to allow for an extended set of platform MXBeans
   */
  public final class ExtendedPlatformComponent {
*** 38,54 ****
--- 41,79 ----
      /**
       * Get the extended set of platform MXBeans that should be registered in the
       * platform MBeanServer, or an empty list if there are no such MXBeans.
       */
      public static List<? extends PlatformManagedObject> getMXBeans() {
+         PlatformManagedObject o = getFlightRecorderBean();
+         if (o != null) {
+             return Collections.singletonList(o);
+         } else {
              return Collections.emptyList();
          }
+     }
  
      /**
       * Returns the extended platform MXBean implementing the given
       * mxbeanInterface, or null if there is no such MXBean.
       */
      public static <T extends PlatformManagedObject>
              T getMXBean(Class<T> mxbeanInterface) {
+ 
+         if ("jdk.management.jfr.FlightRecorderMXBean".equals(mxbeanInterface.getName())) {
+             return (T)getFlightRecorderBean();
+         }
          return null;
      }
+ 
+     private static PlatformManagedObject getFlightRecorderBean() {
+         PlatformManagedObject object = null;
+         try {
+             Class provider = Class.forName("jdk.management.jfr.internal.FlightRecorderMXBeanProvider");
+             Method m = provider.getDeclaredMethod("getFlightRecorderMXBean");
+ 
+             object =  (PlatformManagedObject)m.invoke(null);
+         } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
+             // no jfr?
+         }
+         return object;
+     }
  }