.

src/main/java/com/example/api/account/repository/AccountRepository.java

@@ -1,7 +1,9 @@
 package com.example.api.account.repository;
 
 import com.example.api.domain.Account;
+import org.springframework.data.jpa.repository.EntityGraph;
 import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
 
 import java.util.Optional;
 
@@ -10,6 +12,7 @@ public interface AccountRepository extends JpaRepository<Account, Long> {
 
     boolean existsByEmail(String email);
 
+    @EntityGraph(attributePaths = "roles")
     Optional<Account> findByEmail(String email);
 
     Optional<Account> findUserByLoginId(String loginId);

src/main/java/com/example/api/domain/Account.java

@@ -14,6 +14,8 @@
 
 import java.util.Collection;
 
+import static jakarta.persistence.FetchType.*;
+
 
 @Entity
 @Getter

src/main/java/com/example/api/global/config/SecurityConfig.java

@@ -89,7 +89,7 @@ static class FailedAuthenticationEntryPoint implements AuthenticationEntryPoint
         @Override
         public void commence(HttpServletRequest request,
                              HttpServletResponse response,
-                             AuthenticationException authException) throws IOException, ServletException {
+                             AuthenticationException authException) throws IOException {
             response.setContentType("application/json");
             response.setStatus(HttpServletResponse.SC_FORBIDDEN);
 

src/main/java/com/example/api/oauth2/entity/handler/OAuth2AuthenticationSuccessHandler.java

@@ -19,6 +19,7 @@
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.servlet.http.HttpServletResponse;
 import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
 import org.jetbrains.annotations.NotNull;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.security.core.Authentication;
@@ -34,6 +35,7 @@
 import static com.example.api.oauth2.entity.HttpCookieOAuth2AuthorizationRequestRepository.REDIRECT_URI_PARAM_COOKIE_NAME;
 
 @Component
+@Slf4j
 @RequiredArgsConstructor
 public class OAuth2AuthenticationSuccessHandler extends SimpleUrlAuthenticationSuccessHandler {
     private final JwtTokenProvider tokenProvider;