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Wraps either an existing OutputStream or an existing Writerand provides
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HashMap is an implementation of Map. All optional operations are supported.All
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A task that returns a result and may throw an exception. Implementors define a
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Factory and utility methods for Executor, ExecutorService,
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Provides Base64 encoding and decoding as defined by RFC 2045.This class
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General file manipulation utilities. Facilities are provided in the following
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