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ObjectMapper provides functionality for reading and writing JSON, either to and
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Signals a general, I/O-related error. Error details may be specified when
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Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
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Formats and parses dates in a locale-sensitive manner. Formatting turns a Date
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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A border layout lays out a container, arranging and resizing its components to
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