anchor.diff:  ----
   @Bean
   public BCryptPasswordEncoder passwordEncoder() {
  -    return new BCryptPasswordEncoder();
  +		return new BCryptPasswordEncoder();
   }
   ----
   
  
positive.code: [source,java]
  ----
  public class WebSecurity {
      public boolean checkUserId(Authentication authentication, int id) {
          ...
      }
  }
  ----
  
  
negative.code: [source,java]
  ----
  public class WebSecurity {
  		public boolean check(Authentication authentication, HttpServletRequest request) {
  				...
  		}
  }
  ----
  
  