jdk/src/java.base/share/classes/java/util/concurrent/ForkJoinTask.java

*** 1299,1309 ****
       * transient, so a {@code null} result does not necessarily imply
       * quiescence of the pool.  This method is designed primarily to
       * support extensions, and is unlikely to be useful otherwise.
       *
       * @return a task, or {@code null} if none are available
!      * @since 1.9
       */
      protected static ForkJoinTask<?> pollSubmission() {
          Thread t;
          return ((t = Thread.currentThread()) instanceof ForkJoinWorkerThread) ?
              ((ForkJoinWorkerThread)t).pool.pollSubmission() : null;
--- 1299,1309 ----
       * transient, so a {@code null} result does not necessarily imply
       * quiescence of the pool.  This method is designed primarily to
       * support extensions, and is unlikely to be useful otherwise.
       *
       * @return a task, or {@code null} if none are available
!      * @since 9
       */
      protected static ForkJoinTask<?> pollSubmission() {
          Thread t;
          return ((t = Thread.currentThread()) instanceof ForkJoinWorkerThread) ?
              ((ForkJoinWorkerThread)t).pool.pollSubmission() : null;