src/java.base/share/classes/jdk/internal/access/JavaLangAccess.java

@@ -44,10 +44,11 @@
  import java.util.Map;
  import java.util.Set;
  import java.util.concurrent.ConcurrentHashMap;
  import java.util.concurrent.Executor;
  import java.util.concurrent.RejectedExecutionException;
+ import java.util.concurrent.ScheduledExecutorService;
  import java.util.stream.Stream;
  
  import jdk.internal.loader.NativeLibraries;
  import jdk.internal.misc.CarrierThreadLocal;
  import jdk.internal.module.ServicesCatalog;

@@ -594,10 +595,15 @@
      /**
       * Returns the virtual thread default scheduler.
       */
      Executor virtualThreadDefaultScheduler();
  
+     /**
+      * Returns a stream of the delayed task schedulers used for virtual threads.
+      */
+     Stream<ScheduledExecutorService> virtualThreadDelayedTaskSchedulers();
+ 
      /**
       * Creates a new StackWalker
       */
      StackWalker newStackWalkerInstance(Set<StackWalker.Option> options,
                                         ContinuationScope contScope,