src/java.base/share/classes/java/util/concurrent/locks/ReentrantLock.java

8234131: Miscellaneous changes imported from jsr166 CVS 2021-01
Reviewed-by: martin

*** 548,558 ****
       * not be entered with the lock already held then we can assert that
       * fact:
       *
       * <pre> {@code
       * class X {
!      *   ReentrantLock lock = new ReentrantLock();
       *   // ...
       *   public void m() {
       *     assert lock.getHoldCount() == 0;
       *     lock.lock();
       *     try {
--- 548,558 ----
       * not be entered with the lock already held then we can assert that
       * fact:
       *
       * <pre> {@code
       * class X {
!      *   final ReentrantLock lock = new ReentrantLock();
       *   // ...
       *   public void m() {
       *     assert lock.getHoldCount() == 0;
       *     lock.lock();
       *     try {
*** 578,588 ****
       * debugging and testing. For example, a method that should only be
       * called while a lock is held can assert that this is the case:
       *
       * <pre> {@code
       * class X {
!      *   ReentrantLock lock = new ReentrantLock();
       *   // ...
       *
       *   public void m() {
       *       assert lock.isHeldByCurrentThread();
       *       // ... method body
--- 578,588 ----
       * debugging and testing. For example, a method that should only be
       * called while a lock is held can assert that this is the case:
       *
       * <pre> {@code
       * class X {
!      *   final ReentrantLock lock = new ReentrantLock();
       *   // ...
       *
       *   public void m() {
       *       assert lock.isHeldByCurrentThread();
       *       // ... method body
*** 592,602 ****
       * <p>It can also be used to ensure that a reentrant lock is used
       * in a non-reentrant manner, for example:
       *
       * <pre> {@code
       * class X {
!      *   ReentrantLock lock = new ReentrantLock();
       *   // ...
       *
       *   public void m() {
       *       assert !lock.isHeldByCurrentThread();
       *       lock.lock();
--- 592,602 ----
       * <p>It can also be used to ensure that a reentrant lock is used
       * in a non-reentrant manner, for example:
       *
       * <pre> {@code
       * class X {
!      *   final ReentrantLock lock = new ReentrantLock();
       *   // ...
       *
       *   public void m() {
       *       assert !lock.isHeldByCurrentThread();
       *       lock.lock();