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Return the contained value, if present, otherwise throw an exception to be
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This class generates cryptographically secure pseudo-random numbers. It is best
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Calendar is an abstract base class for converting between a Date object and a
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A PriorityQueue holds elements on a priority heap, which orders the elements
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A counting semaphore. Conceptually, a semaphore maintains a set of permits. Each
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Factory for creating Log instances, with discovery and configuration features
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