extract method not behaving quite right and including a return value where none is required

 def list = {
        params.max = Math.min(params.max ? params.int('max') : 10, 100)
	Thread.sleep(2000)
        [albumInstanceList: Album.list(params), albumInstanceTotal: Album.count()]
 }

    def list = {
        params.max = Math.min(params.max ? params.int('max') : 10, 100)
		params = delay()
        [albumInstanceList: Album.list(params), albumInstanceTotal: Album.count()]
    }

    private Map delay() {
		Thread.sleep(2000)
		return params
    }