diff --git a/src/main/java/com/loafle/overflow/core/exception/OverflowException.java b/src/main/java/com/loafle/overflow/core/exception/OverflowException.java
index 8fb7d13..b1d1b7c 100644
--- a/src/main/java/com/loafle/overflow/core/exception/OverflowException.java
+++ b/src/main/java/com/loafle/overflow/core/exception/OverflowException.java
@@ -1,7 +1,8 @@
 package com.loafle.overflow.core.exception;
 
 public class OverflowException extends Exception {
-    public OverflowException(String message){ super(message); }
+    private static final long serialVersionUID = -2737018677113628699L;
+	public OverflowException(String message){ super(message); }
     public OverflowException(String message, Throwable throwable) {
         super(message, throwable);
     }
diff --git a/src/main/java/com/loafle/overflow/service/central/history/HistoryService.java b/src/main/java/com/loafle/overflow/service/central/history/HistoryService.java
index 19fd72b..4aaedb7 100644
--- a/src/main/java/com/loafle/overflow/service/central/history/HistoryService.java
+++ b/src/main/java/com/loafle/overflow/service/central/history/HistoryService.java
@@ -2,11 +2,8 @@ package com.loafle.overflow.service.central.history;
 
 import com.loafle.overflow.core.annotation.WebappAPI;
 import com.loafle.overflow.core.model.PageParams;
-import com.loafle.overflow.model.domain.Domain;
 import com.loafle.overflow.model.history.History;
-
 import com.loafle.overflow.model.meta.MetaHistoryType;
-import com.loafle.overflow.model.probe.Probe;
 import org.springframework.data.domain.Page;
 
 public interface HistoryService {
diff --git a/src/main/java/com/loafle/overflow/service/central/infra/InfraService.java b/src/main/java/com/loafle/overflow/service/central/infra/InfraService.java
index ff32e5a..e596b3b 100644
--- a/src/main/java/com/loafle/overflow/service/central/infra/InfraService.java
+++ b/src/main/java/com/loafle/overflow/service/central/infra/InfraService.java
@@ -4,7 +4,6 @@ import java.util.List;
 
 import com.loafle.overflow.core.exception.OverflowException;
 import com.loafle.overflow.core.model.PageParams;
-import com.loafle.overflow.model.domain.Domain;
 import com.loafle.overflow.model.infra.Infra;
 import com.loafle.overflow.model.probe.Probe;
 import com.loafle.overflow.model.target.Target;
diff --git a/src/main/java/com/loafle/overflow/service/central/noauthprobe/NoAuthProbeService.java b/src/main/java/com/loafle/overflow/service/central/noauthprobe/NoAuthProbeService.java
index a1020cc..e023e05 100644
--- a/src/main/java/com/loafle/overflow/service/central/noauthprobe/NoAuthProbeService.java
+++ b/src/main/java/com/loafle/overflow/service/central/noauthprobe/NoAuthProbeService.java
@@ -3,7 +3,6 @@ package com.loafle.overflow.service.central.noauthprobe;
 import com.loafle.overflow.core.annotation.ProbeAPI;
 import com.loafle.overflow.core.annotation.WebappAPI;
 import com.loafle.overflow.core.exception.OverflowException;
-import com.loafle.overflow.model.domain.Domain;
 import com.loafle.overflow.model.noauthprobe.NoAuthProbe;
 
 import java.util.List;