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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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This class generates cryptographically secure pseudo-random numbers. It is best
to invoke SecureRand
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A connection represents a link from a Java application to a database. All SQL
statements and results
- Arrays (java.util)
This class contains various methods for manipulating arrays (such as sorting and
searching). This cl
- Set (java.util)
A Set is a data structure which does not allow duplicate elements.
- FileUtils (org.apache.commons.io)
General file manipulation utilities. Facilities are provided in the following
areas: * writing to a
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