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Return the contained value, if present, otherwise throw an exception to be
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Legacy security code; do not use.
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This class generates cryptographically secure pseudo-random numbers. It is best
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An Executor that provides methods to manage termination and methods that can
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A TimeUnit represents time durations at a given unit of granularity and provides
utility methods to
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General file manipulation utilities. Facilities are provided in the following
areas: * writing to a
- JFileChooser (javax.swing)
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