title: ResourceServerConfigurerAdapter vs WebSecurityConfigurerAdapter
body: <p>I'm currently working on a Oauth2 implementation with Spring Security, and I found many documentations that use <code>ResourceServerConfigurerAdapter</code> along with the <code>WebSecurityConfigurerAdapter</code>. </p>
  
  <p>I hope someone can tell me the differences between the two configurations because I really get confused in which <code>configure(HttpSecurity http)</code> method to use since both classes offer one.</p>
  
  <p>I've found some similar questions here in stackoverflow but there are not clearly answered. </p>