Forgetting releaseLock() permanently breaks the stream. The locked property tells you that a stream is locked, but not why, by whom, or whether the lock is even still usable. Piping internally acquires locks, making streams unusable during pipe operations in ways that aren't obvious.
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In Asia excluding Japan, organic revenue slipped 4% for the year. Performance improved in the second half, however, with organic growth of 2% in the third quarter and 1% in the fourth quarter, reversing the first-half downturn.。夫子对此有专业解读