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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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A controller for the selection of SelectableChannel objects. Selectable channels
can be registered w
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A connection represents a link from a Java application to a database. All SQL
statements and results
- BlockingQueue (java.util.concurrent)
A java.util.Queue that additionally supports operations that wait for the queue
to become non-empty
- IOUtils (org.apache.commons.io)
General IO stream manipulation utilities. This class provides static utility
methods for input/outpu
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The GridBagLayout class is a flexible layout manager that aligns components
vertically and horizonta
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