diff --git a/skywalking-storage-center/skywalking-routing/src/main/java/com/a/eye/skywalking/routing/http/module/AckSpanModule.java b/skywalking-storage-center/skywalking-routing/src/main/java/com/a/eye/skywalking/routing/http/module/AckSpanModule.java
index 6f62352b1..042d6c5ae 100644
--- a/skywalking-storage-center/skywalking-routing/src/main/java/com/a/eye/skywalking/routing/http/module/AckSpanModule.java
+++ b/skywalking-storage-center/skywalking-routing/src/main/java/com/a/eye/skywalking/routing/http/module/AckSpanModule.java
@@ -9,15 +9,16 @@ import java.util.Map;
 import static com.a.eye.skywalking.util.TraceIdUtil.isIllegalTraceId;
 
 /**
- * Ack span module <p> All fields in this class will be initialized by {@link
- * com.google.gson.Gson#fromJson(String, Class)}, ignore the un-assign values warning.
+ * Ack span module
+ * <p>
+ * All fields in this class will be initialized by {@link com.google.gson.Gson#fromJson(String, Class)}, ignore the un-assign values warning.
  */
 public class AckSpanModule {
     private String traceId;
     private String parentLevelId;
-    private int levelId = 0;
-    private long cost;
-    private int routeKey;
+    private int    levelId;
+    private long   cost;
+    private int    routeKey;
 
     private Map<String, String> tags;
 
diff --git a/skywalking-storage-center/skywalking-routing/src/main/java/com/a/eye/skywalking/routing/http/module/RequestSpanModule.java b/skywalking-storage-center/skywalking-routing/src/main/java/com/a/eye/skywalking/routing/http/module/RequestSpanModule.java
index 7a3a3293a..19adfe4ec 100644
--- a/skywalking-storage-center/skywalking-routing/src/main/java/com/a/eye/skywalking/routing/http/module/RequestSpanModule.java
+++ b/skywalking-storage-center/skywalking-routing/src/main/java/com/a/eye/skywalking/routing/http/module/RequestSpanModule.java
@@ -9,15 +9,16 @@ import java.util.Map;
 import static com.a.eye.skywalking.util.TraceIdUtil.isIllegalTraceId;
 
 /**
- * request span module <p> All fields in this class will be initialized by {@link
- * com.google.gson.Gson#fromJson(String, Class)}, ignore the un-assign values warning.
+ * request span module
+ * <p>
+ * All fields in this class will be initialized by {@link com.google.gson.Gson#fromJson(String, Class)}, ignore the un-assign values warning.
  */
 public class RequestSpanModule {
-    private String traceId;
-    private String parentLevelId;
-    private int levelId;
-    private long startTime;
-    private int routeKey;
+    private String              traceId;
+    private String              parentLevelId;
+    private int                 levelId;
+    private long                startTime;
+    private int                 routeKey;
     private Map<String, String> tags;
 
     public RequestSpan convertToGRPCModule() {