refactor: CustomException은 이중 래핑하지 않고 던지도록

src/main/java/com/example/solidconnection/cache/ThunderingHerdCachingAspect.java

@@ -7,6 +7,7 @@
 
 import com.example.solidconnection.cache.annotation.ThunderingHerdCaching;
 import com.example.solidconnection.cache.manager.CacheManager;
+import com.example.solidconnection.common.exception.CustomException;
 import com.example.solidconnection.util.RedisUtils;
 import java.time.Duration;
 import java.util.UUID;
@@ -114,6 +115,8 @@ private Object executeWithLock(String lockKey, Callable<Object> onLockAcquired,
             } else {
                 return onLockFailed.call();
             }
+        } catch (CustomException e) {
+            throw e;
         } catch (Exception e) {
             throw new RuntimeException("Error during executeWithLock", e);
         } finally {
@@ -150,6 +153,8 @@ private Object waitForCacheToUpdate(ProceedingJoinPoint joinPoint, String key) {
     private Object proceedJoinPoint(ProceedingJoinPoint joinPoint) {
         try {
             return joinPoint.proceed();
+        } catch (CustomException e) {
+            throw e;
         } catch (Throwable e) {
             throw new RuntimeException("Error during proceedJoinPoint", e);
         }

src/test/java/com/example/solidconnection/university/service/UnivApplyInfoQueryServiceTest.java

@@ -83,10 +83,8 @@ class 대학_지원_정보_상세_조회 {
             Long invalidUnivApplyInfoId = 9999L;
 
             // when & then
-            assertThatExceptionOfType(RuntimeException.class)
+            assertThatExceptionOfType(CustomException.class)
                     .isThrownBy(() -> univApplyInfoQueryService.getUnivApplyInfoDetail(invalidUnivApplyInfoId))
-                    .havingRootCause()
-                    .isInstanceOf(CustomException.class)
                     .withMessage(UNIV_APPLY_INFO_NOT_FOUND.getMessage());
         }
     }