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Return the contained value, if present, otherwise throw an exception to be
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A readable source of bytes.Most clients will use input streams that read data
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KeyStore is responsible for maintaining cryptographic keys and their owners.
The type of the syste
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Uses a one-way hash function to turn an arbitrary number of bytes into a
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Collection is the root of the collection hierarchy. It defines operations on
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A java.util.Queue that additionally supports operations that wait for the queue
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Patterns are compiled regular expressions. In many cases, convenience methods
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