Order applied to the WebSecurityConfigurerAdapter that is used to configure basic
authentication for application endpoints. If you want to add your own
authentication for all or some of those endpoints the best thing to do is to add
your own WebSecurityConfigurerAdapter with lower order.
Default order of Spring Security's Filter in the servlet container (i.e. amongst
other filters registered with the container). There is no connection between this
and the @Order on a WebSecurityConfigurer.