diff --git a/src/main/java/nbc/ticketing/ticket911/common/aop/LettuceLockAspect.java b/src/main/java/nbc/ticketing/ticket911/common/aop/LettuceLockAspect.java
index 5ceaeb9..605e64d 100644
--- a/src/main/java/nbc/ticketing/ticket911/common/aop/LettuceLockAspect.java
+++ b/src/main/java/nbc/ticketing/ticket911/common/aop/LettuceLockAspect.java
@@ -12,12 +12,10 @@
 import org.springframework.stereotype.Component;
 
 import lombok.RequiredArgsConstructor;
-
 import nbc.ticketing.ticket911.common.annotation.LettuceMultiLock;
-import nbc.ticketing.ticket911.common.annotation.RedissonMultiLock;
-import nbc.ticketing.ticket911.infrastructure.lettuce.LettuceLockManager;
 import nbc.ticketing.ticket911.domain.booking.exception.BookingException;
 import nbc.ticketing.ticket911.domain.booking.exception.code.BookingExceptionCode;
+import nbc.ticketing.ticket911.infrastructure.lettuce.LettuceLockManager;
 
 @Aspect
 @Component
diff --git a/src/main/java/nbc/ticketing/ticket911/domain/booking/application/BookingFacade.java b/src/main/java/nbc/ticketing/ticket911/domain/booking/application/BookingFacade.java
index 297edcc..84d485f 100644
--- a/src/main/java/nbc/ticketing/ticket911/domain/booking/application/BookingFacade.java
+++ b/src/main/java/nbc/ticketing/ticket911/domain/booking/application/BookingFacade.java
@@ -5,10 +5,10 @@
 import org.springframework.stereotype.Service;
 
 import lombok.RequiredArgsConstructor;
-import nbc.ticketing.ticket911.infrastructure.lettuce.DistributedLockService;
 import nbc.ticketing.ticket911.domain.auth.vo.AuthUser;
 import nbc.ticketing.ticket911.domain.booking.dto.request.BookingRequestDto;
 import nbc.ticketing.ticket911.domain.booking.dto.response.BookingResponseDto;
+import nbc.ticketing.ticket911.infrastructure.lettuce.DistributedLockService;
 
 @Service
 @RequiredArgsConstructor
diff --git a/src/main/java/nbc/ticketing/ticket911/domain/booking/application/BookingService.java b/src/main/java/nbc/ticketing/ticket911/domain/booking/application/BookingService.java
index 6beac33..88efa10 100644
--- a/src/main/java/nbc/ticketing/ticket911/domain/booking/application/BookingService.java
+++ b/src/main/java/nbc/ticketing/ticket911/domain/booking/application/BookingService.java
@@ -7,7 +7,6 @@
 import org.springframework.transaction.annotation.Transactional;
 
 import lombok.RequiredArgsConstructor;
-
 import nbc.ticketing.ticket911.common.annotation.LettuceMultiLock;
 import nbc.ticketing.ticket911.common.annotation.RedissonMultiLock;
 import nbc.ticketing.ticket911.domain.auth.vo.AuthUser;
diff --git a/src/main/java/nbc/ticketing/ticket911/domain/concert/application/ConcertService.java b/src/main/java/nbc/ticketing/ticket911/domain/concert/application/ConcertService.java
index 52b7716..13c6c42 100644
--- a/src/main/java/nbc/ticketing/ticket911/domain/concert/application/ConcertService.java
+++ b/src/main/java/nbc/ticketing/ticket911/domain/concert/application/ConcertService.java
@@ -6,7 +6,6 @@
 import org.springframework.transaction.annotation.Transactional;
 
 import lombok.RequiredArgsConstructor;
-import nbc.ticketing.ticket911.domain.concertseat.application.ConcertSeatService;
 import nbc.ticketing.ticket911.domain.concert.dto.request.ConcertCreateRequest;
 import nbc.ticketing.ticket911.domain.concert.dto.request.ConcertSearchCondition;
 import nbc.ticketing.ticket911.domain.concert.dto.request.ConcertUpdateRequest;
@@ -15,6 +14,7 @@
 import nbc.ticketing.ticket911.domain.concert.dto.response.ConcertPageResponse;
 import nbc.ticketing.ticket911.domain.concert.entity.Concert;
 import nbc.ticketing.ticket911.domain.concert.service.ConcertDomainService;
+import nbc.ticketing.ticket911.domain.concertseat.application.ConcertSeatService;
 import nbc.ticketing.ticket911.domain.stage.entity.Stage;
 import nbc.ticketing.ticket911.domain.stage.service.StageDomainService;
 import nbc.ticketing.ticket911.domain.user.entity.User;
diff --git a/src/main/java/nbc/ticketing/ticket911/domain/concert/controller/ConcertController.java b/src/main/java/nbc/ticketing/ticket911/domain/concert/controller/ConcertController.java
index 22d5c2c..388e401 100644
--- a/src/main/java/nbc/ticketing/ticket911/domain/concert/controller/ConcertController.java
+++ b/src/main/java/nbc/ticketing/ticket911/domain/concert/controller/ConcertController.java
@@ -17,8 +17,8 @@
 
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
-import nbc.ticketing.ticket911.domain.concert.application.ConcertService;
 import nbc.ticketing.ticket911.domain.auth.vo.AuthUser;
+import nbc.ticketing.ticket911.domain.concert.application.ConcertService;
 import nbc.ticketing.ticket911.domain.concert.dto.request.ConcertCreateRequest;
 import nbc.ticketing.ticket911.domain.concert.dto.request.ConcertSearchCondition;
 import nbc.ticketing.ticket911.domain.concert.dto.request.ConcertUpdateRequest;
diff --git a/src/main/java/nbc/ticketing/ticket911/domain/seat/controller/SeatController.java b/src/main/java/nbc/ticketing/ticket911/domain/seat/controller/SeatController.java
index 2437e99..47fcf37 100644
--- a/src/main/java/nbc/ticketing/ticket911/domain/seat/controller/SeatController.java
+++ b/src/main/java/nbc/ticketing/ticket911/domain/seat/controller/SeatController.java
@@ -15,8 +15,8 @@
 
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
-import nbc.ticketing.ticket911.domain.seat.application.SeatService;
 import nbc.ticketing.ticket911.common.response.CommonResponse;
+import nbc.ticketing.ticket911.domain.seat.application.SeatService;
 import nbc.ticketing.ticket911.domain.seat.dto.request.CreateSeatRequestDto;
 import nbc.ticketing.ticket911.domain.seat.dto.request.UpdateSeatRequestDto;
 import nbc.ticketing.ticket911.domain.seat.dto.response.SeatResponseDto;
diff --git a/src/main/java/nbc/ticketing/ticket911/domain/stage/controller/StageController.java b/src/main/java/nbc/ticketing/ticket911/domain/stage/controller/StageController.java
index 5d50050..4d999d1 100644
--- a/src/main/java/nbc/ticketing/ticket911/domain/stage/controller/StageController.java
+++ b/src/main/java/nbc/ticketing/ticket911/domain/stage/controller/StageController.java
@@ -17,8 +17,8 @@
 
 import jakarta.validation.Valid;
 import lombok.RequiredArgsConstructor;
-import nbc.ticketing.ticket911.domain.stage.application.StageService;
 import nbc.ticketing.ticket911.common.response.CommonResponse;
+import nbc.ticketing.ticket911.domain.stage.application.StageService;
 import nbc.ticketing.ticket911.domain.stage.dto.request.CreateStageRequestDto;
 import nbc.ticketing.ticket911.domain.stage.dto.request.UpdateStageRequestDto;
 import nbc.ticketing.ticket911.domain.stage.dto.response.StageResponseDto;
diff --git a/src/main/java/nbc/ticketing/ticket911/domain/stage/repository/StageRepository.java b/src/main/java/nbc/ticketing/ticket911/domain/stage/repository/StageRepository.java
index e7fc21d..f982767 100644
--- a/src/main/java/nbc/ticketing/ticket911/domain/stage/repository/StageRepository.java
+++ b/src/main/java/nbc/ticketing/ticket911/domain/stage/repository/StageRepository.java
@@ -11,7 +11,7 @@
 import nbc.ticketing.ticket911.domain.stage.entity.Stage;
 
 public interface StageRepository extends JpaRepository<Stage, Long> {
-    Page<Stage> findByStageNameContaining(String keyword, Pageable pageable);
+	Page<Stage> findByStageNameContaining(String keyword, Pageable pageable);
 
 	@Query("SELECT s FROM Stage s LEFT JOIN FETCH s.seats WHERE s.id = :id")
 	Optional<Stage> findByIdWithSeats(@Param("id") Long id);
diff --git a/src/main/java/nbc/ticketing/ticket911/infrastructure/redisson/RedissonLockRedisService.java b/src/main/java/nbc/ticketing/ticket911/infrastructure/redisson/RedissonLockRedisService.java
index 46f05a6..5d15b8b 100644
--- a/src/main/java/nbc/ticketing/ticket911/infrastructure/redisson/RedissonLockRedisService.java
+++ b/src/main/java/nbc/ticketing/ticket911/infrastructure/redisson/RedissonLockRedisService.java
@@ -58,10 +58,16 @@ public <T> T executeWithMultiLock(List<String> keys, long waitTime, long leaseTi
 		}
 	}
 
-	private RuntimeException wrapThrowable(Throwable t) {
-		if (t instanceof LockRedisException e) return e;
-		if (t instanceof RuntimeException e) return e;
-		if (t instanceof Error e) throw e;
+	private RuntimeException wrapThrowable(Throwable throwable) {
+		if (throwable instanceof LockRedisException e) {
+			return e;
+		}
+		if (throwable instanceof RuntimeException e) {
+			return e;
+		}
+		if (throwable instanceof Error e) {
+			throw e;
+		}
 		return new LockRedisException(LockRedisExceptionCode.LOCK_PROCEED_FAIL);
 	}
 }
diff --git a/src/test/java/nbc/ticketing/ticket911/domain/booking/controller/BookingControllerTestByMySQL.java b/src/test/java/nbc/ticketing/ticket911/domain/booking/controller/BookingControllerTestByMySQL.java
index 299a2ba..c7095a9 100644
--- a/src/test/java/nbc/ticketing/ticket911/domain/booking/controller/BookingControllerTestByMySQL.java
+++ b/src/test/java/nbc/ticketing/ticket911/domain/booking/controller/BookingControllerTestByMySQL.java
@@ -137,10 +137,11 @@ void ConcurrencyProblemByMySQL() throws InterruptedException {
 		for (Future<String> result : results) {
 			try {
 				String outcome = result.get();
-				if (outcome.equals("성공"))
+				if (outcome.equals("성공")) {
 					successCount++;
-				else
+				} else {
 					failureCount++;
+				}
 				System.out.println(outcome);
 			} catch (Exception e) {
 				e.printStackTrace();
diff --git a/src/test/java/nbc/ticketing/ticket911/domain/concert/application/ConcertServiceTest.java b/src/test/java/nbc/ticketing/ticket911/domain/concert/application/ConcertServiceTest.java
index 26f02d8..3df62e3 100644
--- a/src/test/java/nbc/ticketing/ticket911/domain/concert/application/ConcertServiceTest.java
+++ b/src/test/java/nbc/ticketing/ticket911/domain/concert/application/ConcertServiceTest.java
@@ -10,7 +10,8 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
-import org.mockito.*;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
 import org.mockito.junit.jupiter.MockitoExtension;
 
 import nbc.ticketing.ticket911.domain.concert.dto.request.ConcertCreateRequest;
@@ -29,13 +30,19 @@
 @ExtendWith(MockitoExtension.class)
 class ConcertServiceTest {
 
-	@Mock private UserDomainService userDomainService;
-	@Mock private StageDomainService stageDomainService;
-	@Mock private ConcertDomainService concertDomainService;
-	@Mock private ConcertRepository concertRepository;
-	@Mock private ConcertSeatService concertSeatService;
+	@Mock
+	private UserDomainService userDomainService;
+	@Mock
+	private StageDomainService stageDomainService;
+	@Mock
+	private ConcertDomainService concertDomainService;
+	@Mock
+	private ConcertRepository concertRepository;
+	@Mock
+	private ConcertSeatService concertSeatService;
 
-	@InjectMocks private ConcertService concertService;
+	@InjectMocks
+	private ConcertService concertService;
 
 	private Long userId = 1L;
 	private Long stageId = 2L;
@@ -145,7 +152,8 @@ void updateConcert_success() {
 
 		given(concertDomainService.getConcertById(concertId)).willReturn(concert);
 		willDoNothing().given(concertDomainService)
-			.validateCreatable(updateRequest.getStartTime(), updateRequest.getTicketOpen(), updateRequest.getTicketClose());
+			.validateCreatable(updateRequest.getStartTime(), updateRequest.getTicketOpen(),
+				updateRequest.getTicketClose());
 		willDoNothing().given(concertDomainService).validateUpdatable(concert, userId);
 
 		ConcertDetailResponse response = concertService.updateConcert(concertId, userId, updateRequest);