Blocker Description
If a PhaseListener.beforePhase() calles FacesContext.renderResponse() or FacesContext.responseComplete(), then the LifeCycleImpl should not execute the functionality required for the current phase. (see JSF Spec 1.1 section 11-1 page 296f.) LifeCycleImpl is not taking care about this.
This is important for us, because we'd like to make a redirect in the before render response phase. And at the moment an Illegal State exception is thrown, because the renderResponse is executed although responseComplete has been called.