diff --git a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/BomNewEbomUpgradeChangeService.java b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/BomNewEbomUpgradeChangeService.java
index 24685fb6..e324b207 100644
--- a/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/BomNewEbomUpgradeChangeService.java
+++ b/nflg_project_dev/nflg-bom-new/src/main/java/com/nflg/product/bomnew/service/BomNewEbomUpgradeChangeService.java
@@ -1,38 +1,22 @@
 package com.nflg.product.bomnew.service;
 
-import cn.hutool.core.bean.BeanUtil;
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.convert.Convert;
-import cn.hutool.core.lang.Pair;
-import com.baomidou.mybatisplus.core.toolkit.IdWorker;
-import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.google.common.collect.ImmutableList;
-import com.google.common.collect.ImmutableMap;
-import com.google.common.collect.Sets;
-import com.nflg.product.bomnew.constant.ConvertToPBomModelEnum;
 import com.nflg.product.bomnew.constant.EBomStatusEnum;
-import com.nflg.product.bomnew.constant.PBomStatusEnum;
-import com.nflg.product.bomnew.mapper.master.BomNewEbomUpdateDetailMapper;
 import com.nflg.product.bomnew.mapper.master.BomNewEbomUpgradeChangeMapper;
-import com.nflg.product.bomnew.pojo.entity.*;
+import com.nflg.product.bomnew.pojo.entity.BomNewEbomParentEntity;
+import com.nflg.product.bomnew.pojo.entity.BomNewEbomUpgradeChangeEntity;
 import com.nflg.product.bomnew.pojo.vo.BomNewEbomParentVO;
-import com.nflg.product.bomnew.pojo.vo.BomNewPbomParentVO;
-import com.nflg.product.bomnew.service.domain.EBom.*;
-import com.nflg.product.bomnew.util.EnumUtils;
-import com.nflg.product.bomnew.util.ListCommonUtil;
-import com.nflg.product.bomnew.util.VUtils;
-import com.nflg.product.bomnew.util.VersionUtil;
-import nonapi.io.github.classgraph.json.Id;
+import com.nflg.product.bomnew.service.domain.EBom.ChangeImpactUpgrade;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
 import javax.annotation.Resource;
 import java.time.LocalDateTime;
 import java.util.List;
-import java.util.Map;
 import java.util.Objects;
-import java.util.Set;
 import java.util.concurrent.ExecutionException;
 import java.util.stream.Collectors;