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Return the contained value, if present, otherwise throw an exception to be
created by the provided s
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Allows reading from and writing to a file in a random-access manner. This is
different from the uni-
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The BitSet class implements abit array [http://en.wikipedia.org/wiki/Bit_array].
Each element is eit
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A task that returns a result and may throw an exception. Implementors define a
single method with no
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A reentrant mutual exclusion Lock with the same basic behavior and semantics as
the implicit monitor
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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