diff --git a/src/main/java/demo/api/config/SecurityConfig.java b/src/main/java/demo/api/config/SecurityConfig.java
index a32e502..814dc64 100644
--- a/src/main/java/demo/api/config/SecurityConfig.java
+++ b/src/main/java/demo/api/config/SecurityConfig.java
@@ -17,9 +17,6 @@ import org.springframework.security.web.SecurityFilterChain;
 @EnableWebSecurity
 @RequiredArgsConstructor
 public class SecurityConfig {
-//  private final UserRepository userRepository;
-  // https://spring.io/blog/2022/02/21/spring-security-without-the-websecurityconfigureradapter
-  // https://github.com/spring-projects/spring-security/issues/10822
   @Bean
   public UserDetailsService userDetailsService() {
     return new UserDetailsServiceImpl();
@@ -43,6 +40,7 @@ public class SecurityConfig {
         .authorizeRequests()
         .antMatchers("/", "/user/signUp", "/user/userList", "/user/signIn*").permitAll()
         .anyRequest().authenticated();
+    
     return http.build();
   }
 }
diff --git a/src/main/java/demo/api/config/UserDetailsServiceImpl.java b/src/main/java/demo/api/config/UserDetailsServiceImpl.java
index 90b8673..6b36707 100644
--- a/src/main/java/demo/api/config/UserDetailsServiceImpl.java
+++ b/src/main/java/demo/api/config/UserDetailsServiceImpl.java
@@ -23,7 +23,7 @@ public class UserDetailsServiceImpl implements UserDetailsService {
   public UserDetails loadUserByUsername(String email) throws UserNotFoundException {
 
     User user = userRepository.findByEmail(email)
-        .orElseThrow(() -> new UserNotFoundException());
+        .orElseThrow(UserNotFoundException::new);
     Set<GrantedAuthority> grantedAuthorities = new HashSet<>();
 
     return new org