src/java.base/share/classes/jdk/internal/misc/JavaLangRefAccess.java

*** 23,39 ****
   * questions.
   */
  
  package jdk.internal.misc;
  
  public interface JavaLangRefAccess {
  
      /**
!      * Help ReferenceHandler thread process next pending
!      * {@link java.lang.ref.Reference}
       *
!      * @return {@code true} if there was a pending reference and it
!      *         was enqueue-ed or {@code false} if there was no
!      *         pending reference
       */
!     boolean tryHandlePendingReference();
  }
--- 23,48 ----
   * questions.
   */
  
  package jdk.internal.misc;
  
+ import java.lang.ref.Cleaner;
+ 
  public interface JavaLangRefAccess {
  
      /**
!      * Enqueue pending {@link java.lang.ref.Reference}s if GC has discovered any.<p>
!      * This method does not return until all references that had been discovered
!      * by the time this method was called, are enqueued even if some of them are
!      * being enqueued concurrently by other threads.
!      */
!     void enqueuePendingReferences();
! 
!     /**
!      * Processes next Cleanable that has been waiting in the queue maintained
!      * by given {@code cleaner}.
       *
!      * @return {@code true} if a Cleanable was found in the queue and
!      * was processed or {@code false} if the queue was empty.
       */
!     boolean cleanNextEnqueuedCleanable(Cleaner cleaner);
  }