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Wraps either an existing OutputStream or an existing Writerand provides
convenience methods for prin
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This SocketException may be thrown during socket creation or setting options,
and is the superclass
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This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
- Map (java.util)
A Map is a data structure consisting of a set of keys and values in which each
key is mapped to a si
- Logger (org.apache.log4j)
This is the central class in the log4j package. Most logging operations, except
configuration, are d
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The LoggerFactory is a utility class producing Loggers for various logging APIs,
most notably for lo
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