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Return the contained value, if present, otherwise throw an exception to be
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A thread is a thread of execution in a program. The Java Virtual Machine allows
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A Properties object is a Hashtable where the keys and values must be Strings.
Each property can have
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A parser that parses a text string of primitive types and strings with the help
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UUID is an immutable representation of a 128-bit universally unique identifier
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Provides an abstract class to be subclassed to create an HTTP servlet suitable
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This is the central class in the log4j package. Most logging operations, except
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