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ObjectMapper provides functionality for reading and writing JSON, either to and
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A connection to a URL for reading or writing. For HTTP connections, see
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A Comparator is used to compare two objects to determine their ordering with
respect to each other.
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HashSet is an implementation of a Set. All optional operations (adding and
removing) are supported.
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A PriorityQueue holds elements on a priority heap, which orders the elements
according to their natu
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Basic implementation of javax.sql.DataSource that is configured via JavaBeans
properties. This is no
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