UML14 — Notation says swimlanes are packages

Summary: The notation guide has a couple descriptions of swimlanes as
packages, even though swimlanes are not mapped to packages.
References:

If an object lifeline is not shown, then some object within the
swimlane package is responsible for the action, but the object
is not shown. [p 127, section 10.5.2, Notation, or p 130 in UML
1.2]

Actions may be organized into swimlanes. Swimlanes are a kind of
package used to organize responsibility for activities within a
class. [p 125, section 10.4.2, Notation, or p 128 in UML
1.2]

Fixed in UML 1.3.