diff --git a/src/main/java/com/nhn/pinpoint/web/controller/MainController.java b/src/main/java/com/nhn/pinpoint/web/controller/MainController.java
index 80fd9bd3f..d12c14537 100644
--- a/src/main/java/com/nhn/pinpoint/web/controller/MainController.java
+++ b/src/main/java/com/nhn/pinpoint/web/controller/MainController.java
@@ -33,9 +33,9 @@ public class MainController {
     @ResponseBody
 	public ApplicationGroup getApplicationGroup() {
 		List<Application> applicationList = commonService.selectAllApplicationNames();
-        logger.debug("/applications, {}", applicationList);
+        logger.debug("/applications {}", applicationList);
 
-        return  new ApplicationGroup(applicationList);
+        return new ApplicationGroup(applicationList);
 	}
 
 	@RequestMapping(value = "/serverTime", method = RequestMethod.GET)
diff --git a/src/main/java/com/nhn/pinpoint/web/service/FilteredMapServiceImpl.java b/src/main/java/com/nhn/pinpoint/web/service/FilteredMapServiceImpl.java
index 0de8724f6..30223b9f4 100755
--- a/src/main/java/com/nhn/pinpoint/web/service/FilteredMapServiceImpl.java
+++ b/src/main/java/com/nhn/pinpoint/web/service/FilteredMapServiceImpl.java
@@ -82,6 +82,7 @@ public class FilteredMapServiceImpl implements FilteredMapService {
     }
 
     @Override
+    @Deprecated
     public LoadFactor linkStatistics(Range range, List<TransactionId> traceIdSet, Application sourceApplication, Application destinationApplication, Filter filter) {
         if (sourceApplication == null) {
             throw new NullPointerException("sourceApplication must not be null");
diff --git a/src/main/java/com/nhn/pinpoint/web/view/ServerTime.java b/src/main/java/com/nhn/pinpoint/web/view/ServerTime.java
index e08185509..9890d87ac 100644
--- a/src/main/java/com/nhn/pinpoint/web/view/ServerTime.java
+++ b/src/main/java/com/nhn/pinpoint/web/view/ServerTime.java
@@ -1,5 +1,7 @@
 package com.nhn.pinpoint.web.view;
 
+import com.fasterxml.jackson.annotation.JsonProperty;
+
 /**
  * @author emeroad
  */
@@ -11,6 +13,7 @@ public class ServerTime {
         this.currentServerTime = System.currentTimeMillis();
     }
 
+    @JsonProperty("currentServerTime")
     public long getCurrentServerTime() {
         return currentServerTime;
     }