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Return the contained value, if present, otherwise throw an exception to be
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A charset is a named mapping between Unicode characters and byte sequences.
Every Charset can decode
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HashMap is an implementation of Map. All optional operations are supported.All
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A synchronization aid that allows one or more threads to wait until a set of
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Factory and utility methods for Executor, ExecutorService,
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Main entry-point into the library.
Options represents a collection of Option objects, which describ
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The GridLayout class is a layout manager that lays out a container's components
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