src/main/java/org/apache/commons/pool3/PoolUtils.java [825:837]:
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            } finally {
                readLock.unlock();
            }
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public int getNumIdle() {
            final ReadLock readLock = readWriteLock.readLock();
            readLock.lock();
            try {
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src/main/java/org/apache/commons/pool3/PoolUtils.java [1130:1142]:
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            } finally {
                readLock.unlock();
            }
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public int getNumIdle() {
            final ReadLock readLock = readWriteLock.readLock();
            readLock.lock();
            try {
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