Equinox p2 and proxy configuration in your own RCP Application

A few days ago I had the problem to add proxy support for p2 updates in my own RCP application. The solution was very quick and simple.

All I had to do was to add the plugins "org.eclipse.ui.net" and "org.eclipse.core.net" (and all their required plugins) to the dependencies  of my RCP plugin. Afterwards I had the perference page "Network Connections" within the preferences where users can configure their proxy settings. Now users can update the application via a proxy!