src/java.base/share/classes/java/util/concurrent/ForkJoinWorkerThread.java

rev 12972 : 8140606: Update library code to use internal Unsafe
Reviewed-by: duke

*** 183,193 ****
       */
      void afterTopLevelExec() {
      }
  
      // Set up to allow setting thread fields in constructor
!     private static final sun.misc.Unsafe U = sun.misc.Unsafe.getUnsafe();
      private static final long THREADLOCALS;
      private static final long INHERITABLETHREADLOCALS;
      private static final long INHERITEDACCESSCONTROLCONTEXT;
      static {
          try {
--- 183,193 ----
       */
      void afterTopLevelExec() {
      }
  
      // Set up to allow setting thread fields in constructor
!     private static final jdk.internal.misc.Unsafe U = jdk.internal.misc.Unsafe.getUnsafe();
      private static final long THREADLOCALS;
      private static final long INHERITABLETHREADLOCALS;
      private static final long INHERITEDACCESSCONTROLCONTEXT;
      static {
          try {
*** 246,256 ****
           * topmost, parent-less group) as parent.  Uses Unsafe to
           * traverse Thread.group and ThreadGroup.parent fields.
           */
          private static ThreadGroup createThreadGroup() {
              try {
!                 sun.misc.Unsafe u = sun.misc.Unsafe.getUnsafe();
                  long tg = u.objectFieldOffset
                      (Thread.class.getDeclaredField("group"));
                  long gp = u.objectFieldOffset
                      (ThreadGroup.class.getDeclaredField("parent"));
                  ThreadGroup group = (ThreadGroup)
--- 246,256 ----
           * topmost, parent-less group) as parent.  Uses Unsafe to
           * traverse Thread.group and ThreadGroup.parent fields.
           */
          private static ThreadGroup createThreadGroup() {
              try {
!                 jdk.internal.misc.Unsafe u = jdk.internal.misc.Unsafe.getUnsafe();
                  long tg = u.objectFieldOffset
                      (Thread.class.getDeclaredField("group"));
                  long gp = u.objectFieldOffset
                      (ThreadGroup.class.getDeclaredField("parent"));
                  ThreadGroup group = (ThreadGroup)