title: Spring.factories in META-INF folder not added to "target" folder after packaging jar (springboot app)
body: <p>I'm trying to use EnvironmentPostProcessor in order to load some docker secrets into the application properties.</p>
  <p>I have a META-INF folder with a spring.factories file to bind the EnvironmentPostProcessor implementation, the META-INF folder is located under main/java/META-INF.</p>
  <p>The problem I run into is that when I use maven install / maven package, the META-INF folder is added to target/classes folder, but the spring.factories file is not there.</p>
  <p>I want to add it as a resource to be generated, and I can't have the META-INF in the resource folder because I'm also using JAX2B which needs to generate classes in package that is available to other modules (not the resource folder)</p>
  <p>Would really appreciate some help..</p>