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This SocketException may be thrown during socket creation or setting options,
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Thrown when a hostname can not be resolved.
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A controller for the selection of SelectableChannel objects. Selectable channels
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ArrayList is an implementation of List, backed by an array. All optional
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A Set is a data structure which does not allow duplicate elements.
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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