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Return the contained value, if present, otherwise throw an exception to be
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An "abstract" representation of a file system entity identified by a pathname.
The pathname may be a
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A class for turning a byte stream into a character stream. Data read from the
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This SocketException may be thrown during socket creation or setting options,
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This class consists exclusively of static methods that operate on or return
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SortedSet is a Set which iterates over its elements in a sorted order. The order
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