code: private void cleanupAfterView() {
  		FacesContext ctx = FacesContext.getCurrentInstance();
  		ResponseWriter orig = (ResponseWriter) ctx.getAttributes().get(ORIGINAL_WRITER);
  		assert(null != orig);
  		// move aside the PartialResponseWriter
  		ctx.setResponseWriter(orig);
  	}
docs: Copied from com.sun.faces.context.PartialViewContextImpl.