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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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Uses a one-way hash function to turn an arbitrary number of bytes into a
fixed-length byte sequence.
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Provides an abstract class to be subclassed to create an HTTP servlet suitable
for a Web site. A sub
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Operations on java.lang.String that arenull safe.
* IsEmpty/IsBlank - checks if a String contains
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This is the central class in the log4j package. Most logging operations, except
configuration, are d
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