RichFunction provides number of utility functions for inlining JavaScript calls refering to client-side component API.

Those functions (in fact utility methods) usually returns null when no such component found.

This is not very clever, since developers might observe tough-times when refactoring or even authoring JSF pages - they will observe problems during testing or even worse in production.

In case no such component found in tree, I propose to either:

• throw exception
• produce FacesMessage