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Return the contained value, if present, otherwise throw an exception to be
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Uses a one-way hash function to turn an arbitrary number of bytes into a
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A connection represents a link from a Java application to a database. All SQL
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A concrete subclass of NumberFormat that formats decimal numbers. It has a
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An int value that may be updated atomically. See the java.util.concurrent.atomic
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This is the central class in the log4j package. Most logging operations, except
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