| This stage is the beginning of the component lifecycle. | |
| A component is instantiated by application code (or by Wicket in case of bookmarkable page) and added to a parental component. As soon as the component is contained in a component tree rooted in a page, a “post”-constructor _onInitialize()_ is called where we can execute custom initialization of our component. | |
| When we override this method we have to call _super.onInitialize()_, usually before anything else in that method. |