diff --git a/timeline-user-service/src/test/java/com/timeline/user/service/SmartCollectionServiceTest.java b/timeline-user-service/src/test/java/com/timeline/user/service/SmartCollectionServiceTest.java
index 69dfde2..6b9938b 100644
--- a/timeline-user-service/src/test/java/com/timeline/user/service/SmartCollectionServiceTest.java
+++ b/timeline-user-service/src/test/java/com/timeline/user/service/SmartCollectionServiceTest.java
@@ -1,5 +1,6 @@
 package com.timeline.user.service;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.timeline.user.dao.SmartCollectionMapper;
 import com.timeline.user.dto.SmartCollectionDto;
@@ -67,10 +68,15 @@ class SmartCollectionServiceTest {
         // Given
         Map<String, Object> metadata = new HashMap<>();
         metadata.put("date", LocalDateTime.of(2024, 1, 15, 10, 30));
-        
+
         when(smartCollectionMapper.existsByUserIdAndTypeAndCriteria(
-            eq(testUserId), eq("DATE"), anyString())).thenReturn(0);
-        when(objectMapper.writeValueAsString(anyMap())).thenReturn("{}");
+                eq(testUserId), eq("DATE"), anyString())).thenReturn(0);
+        try {
+            when(objectMapper.writeValueAsString(anyMap())).thenReturn("{}");
+        } catch (JsonProcessingException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
 
         // When
         smartCollectionService.processPhotoMetadata(testUserId, "photo123", metadata);
@@ -89,10 +95,15 @@ class SmartCollectionServiceTest {
         location.put("latitude", 48.8566);
         location.put("longitude", 2.3522);
         metadata.put("location", location);
-        
+
         when(smartCollectionMapper.existsByUserIdAndTypeAndCriteria(
-            eq(testUserId), eq("LOCATION"), anyString())).thenReturn(0);
-        when(objectMapper.writeValueAsString(anyMap())).thenReturn("{}");
+                eq(testUserId), eq("LOCATION"), anyString())).thenReturn(0);
+        try {
+            when(objectMapper.writeValueAsString(anyMap())).thenReturn("{}");
+        } catch (JsonProcessingException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
 
         // When
         smartCollectionService.processPhotoMetadata(testUserId, "photo123", metadata);
@@ -106,10 +117,15 @@ class SmartCollectionServiceTest {
         // Given
         Map<String, Object> metadata = new HashMap<>();
         metadata.put("persons", Arrays.asList("Alice", "Bob"));
-        
+
         when(smartCollectionMapper.existsByUserIdAndTypeAndCriteria(
-            eq(testUserId), eq("PERSON"), anyString())).thenReturn(0);
-        when(objectMapper.writeValueAsString(anyMap())).thenReturn("{}");
+                eq(testUserId), eq("PERSON"), anyString())).thenReturn(0);
+        try {
+            when(objectMapper.writeValueAsString(anyMap())).thenReturn("{}");
+        } catch (JsonProcessingException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
 
         // When
         smartCollectionService.processPhotoMetadata(testUserId, "photo123", metadata);
@@ -124,10 +140,15 @@ class SmartCollectionServiceTest {
         // Given
         Map<String, Object> metadata = new HashMap<>();
         metadata.put("date", LocalDateTime.of(2024, 1, 15, 10, 30));
-        
+
         when(smartCollectionMapper.existsByUserIdAndTypeAndCriteria(
-            eq(testUserId), eq("DATE"), anyString())).thenReturn(1);
-        when(objectMapper.writeValueAsString(anyMap())).thenReturn("{}");
+                eq(testUserId), eq("DATE"), anyString())).thenReturn(1);
+        try {
+            when(objectMapper.writeValueAsString(anyMap())).thenReturn("{}");
+        } catch (JsonProcessingException e) {
+            // TODO Auto-generated catch block
+            e.printStackTrace();
+        }
 
         // When
         smartCollectionService.processPhotoMetadata(testUserId, "photo123", metadata);