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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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ObjectMapper provides functionality for reading and writing JSON, either to and
from basic POJOs (Pl
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A class for turning a byte stream into a character stream. Data read from the
source input stream is
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This class represents a server-side socket that waits for incoming client
connections. A ServerSocke
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A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
- Dictionary (java.util)
Note: Do not use this class since it is obsolete. Please use the Map interface
for new implementatio
- Iterator (java.util)
An iterator over a sequence of objects, such as a collection.If a collection has
been changed since
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