UML22 — association "context"

The association "context" is defined as referencing the classifier owning the behavior. However, when behaviors are embedded within other behaviors, such as when a statemachine state owns a transition, this does not work. Instead, derive the context of the behavior in the following way: If the behavior is owned by a BehavioredClassifier, that classifier is the context. Otherwise, follow the chain of ownerships until you reach a BehavioredClassifier. That classifier is the context.

see above