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Return the contained value, if present, otherwise throw an exception to be
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ObjectMapper provides functionality for reading and writing JSON, either to and
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This class implements a simple HTTP server. A HttpServer is bound to an IP
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Wraps either an existing OutputStream or an existing Writerand provides
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This class is used to encode a string using the format required by
application/x-www-form-urlencoded
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Doubly-linked list implementation of the List and Dequeinterfaces. Implements
all optional list oper
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The GridBagLayout class is a flexible layout manager that aligns components
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