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Return the contained value, if present, otherwise throw an exception to be
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A writable sink for bytes.Most clients will use output streams that write data
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This class consists exclusively of static methods that operate on or return
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A PriorityQueue holds elements on a priority heap, which orders the elements
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A java.util.Queue that additionally supports operations that wait for the queue
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A TimeUnit represents time durations at a given unit of granularity and provides
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