title: How to log all active properties of a spring boot application before the beans instantiation?
body: <p>There is already a <a href="https://stackoverflow.com/questions/24448947/how-to-log-the-active-configuration-in-a-spring-boot-application">question</a> asking for logging the active configuration, there is a correct <a href="https://stackoverflow.com/a/37392817/1807667">answer</a> but the problem is that the configuration is logged only if all beans are correctly instantiated. I would like to log all properties even (mainly) if the application crash at startup. My question is more specific: </p>
  
  <p>How to log all active properties of a spring boot application <strong>before</strong> the beans instantiation?</p>