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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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An output stream that writes bytes to a file. If the output file exists, it can
be replaced or appen
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HashMap is an implementation of Map. All optional operations are supported.All
elements are permitte
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Walk the nodes of the tree left-to-right or right-to-left. Note that in
descending iterations, next
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Basic implementation of javax.sql.DataSource that is configured via JavaBeans
properties. This is no
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