Examples of jersey.repackaged.jsr166e.StampedLock

jersey.repackaged.jsr166e.StampedLock
xclusively locked method long stamp = sl.writeLock(); try { x += deltaX; y += deltaY; } finally { sl.unlockWrite(stamp); } } double distanceFromOrigin() { // A read-only method long stamp = sl.tryOptimisticRead(); double currentX = x, currentY = y; if (!sl.validate(stamp)) { stamp = sl.readLock(); try { currentX = x; currentY = y; } finally { sl.unlockRead(stamp); } } return Math.sqrt(currentX * currentX + currentY * currentY); } void moveIfAtOrigin(double newX, double newY) { // upgrade // Could instead start with optimistic, not read mode long stamp = sl.readLock(); try { while (x == 0.0 && y == 0.0) { long ws = sl.tryConvertToWriteLock(stamp); if (ws != 0L) { stamp = ws; x = newX; y = newY; break; } else { sl.unlockRead(stamp); stamp = sl.writeLock(); } } } finally { sl.unlock(stamp); } } }} @since 1.8 @author Doug Lea

            }
        }


        public boolean addAll(Collection<? extends E> c) {
            Object[] elements = c.toArray();
            final StampedLock lock = list.lock;
            long stamp = lock.writeLock();
            try {
                int s = size;
                int pc = list.count;
                list.rawAddAllAt(offset + s, elements);
                int added = list.count - pc;
                size = s + added;
                return added != 0;
            } finally {
                lock.unlockWrite(stamp);
            }
        }

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            }
        }


        public boolean addAll(int index, Collection<? extends E> c) {
            Object[] elements = c.toArray();
            final StampedLock lock = list.lock;
            long stamp = lock.writeLock();
            try {
                int s = size;
                if (index < 0 || index > s)
                    throw new ArrayIndexOutOfBoundsException(index);
                int pc = list.count;
                list.rawAddAllAt(index + offset, elements);
                int added = list.count - pc;
                size = s + added;
                return added != 0;
            } finally {
                lock.unlockWrite(stamp);
            }
        }

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                lock.unlockWrite(stamp);
            }
        }


        public void clear() {
            final StampedLock lock = list.lock;
            long stamp = lock.writeLock();
            try {
                list.internalClear(offset, offset + size);
                size = 0;
            } finally {
                lock.unlockWrite(stamp);
            }
        }

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        public boolean contains(Object o) {
            return indexOf(o) >= 0;
        }


        public boolean containsAll(Collection<?> c) {
            final StampedLock lock = list.lock;
            long stamp = lock.readLock();
            try {
                return list.internalContainsAll(c, offset, offset + size);
            } finally {
                lock.unlockRead(stamp);
            }
        }

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        public boolean equals(Object o) {
            if (o == this)
                return true;
            if (!(o instanceof List))
                return false;
            final StampedLock lock = list.lock;
            long stamp = lock.readLock();
            try {
                return list.internalEquals((List<?>)(o), offset, offset + size);
            } finally {
                lock.unlockRead(stamp);
            }
        }

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                throw new ArrayIndexOutOfBoundsException(index);
            return list.get(index + offset);
        }


        public int hashCode() {
            final StampedLock lock = list.lock;
            long stamp = lock.readLock();
            try {
                return list.internalHashCode(offset, offset + size);
            } finally {
                lock.unlockRead(stamp);
            }
        }

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                lock.unlockRead(stamp);
            }
        }


        public int indexOf(Object o) {
            final StampedLock lock = list.lock;
            long stamp = lock.readLock();
            try {
                int idx = findFirstIndex(list.array, o, offset, offset + size);
                return idx < 0 ? -1 : idx - offset;
            } finally {
                lock.unlockRead(stamp);
            }
        }

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        public Iterator<E> iterator() {
            return new SubItr<E>(this, offset);
        }


        public int lastIndexOf(Object o) {
            final StampedLock lock = list.lock;
            long stamp = lock.readLock();
            try {
                int idx = findLastIndex(list.array, o, offset + size - 1, offset);
                return idx < 0 ? -1 : idx - offset;
            } finally {
                lock.unlockRead(stamp);
            }
        }

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        public ListIterator<E> listIterator(int index) {
            return new SubItr<E>(this, index + offset);
        }


        public E remove(int index) {
            final StampedLock lock = list.lock;
            long stamp = lock.writeLock();
            try {
                Object[] items = list.array;
                int i = index + offset;
                if (items == null || index < 0 || index >= size || i >= items.length)
                    throw new ArrayIndexOutOfBoundsException(index);
                @SuppressWarnings("unchecked") E result = (E)items[i];
                list.rawRemoveAt(i);
                size--;
                return result;
            } finally {
                lock.unlockWrite(stamp);
            }
        }

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