diff --git a/im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java b/im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java
index e38b9a3..7079bcf 100644
--- a/im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java
+++ b/im-center-server/src/main/java/cn/axzo/im/group/GroupManager.java
@@ -80,7 +80,9 @@ public class GroupManager {
         group = groupDao.getById(group.getId());
         groupBroadcaster.fireGroupChanged(group, MqEventType.GROUP_CREATED);
         groupMemberSyncer.syncMembers(group);
-        groupBroadcaster.fireMembersChanged(group, groupMemberDao.getByTid(nimResponse.getTid()), MqEventType.GROUP_ADD_MEMBERS);
+        groupBroadcaster.fireMembersChanged(group,
+                groupMemberDao.getByTid(nimResponse.getTid()),
+                MqEventType.GROUP_ADD_MEMBERS);
         GroupCreateResponse response = new GroupCreateResponse();
         response.setTid(nimResponse.getTid());
         response.setAccountsNotFound(imAccounts.getAccountNotFoundPersons(
@@ -132,8 +134,7 @@ public class GroupManager {
         BizAssertions.assertTrue(nimResponse.isSuccess(), "添加群成员失败: {}", nimResponse.getDesc());
         // sync members 2
         groupMemberSyncer.syncMembers(group);
-        groupBroadcaster.fireMembersChanged(
-                group,
+        groupBroadcaster.fireMembersChanged(group,
                 groupMemberDao.getByPersons(group.getTid(), toAddMembers),
                 MqEventType.GROUP_ADD_MEMBERS);
         GroupAddMembersResponse response = new GroupAddMembersResponse();
@@ -164,8 +165,8 @@ public class GroupManager {
         log.info("移除群成员, request={}, response={}", nimRequest, nimResponse);
         groupMemberSyncer.syncMembers(group);
         // 不比较直接发消息
-        groupBroadcaster.fireMembersChanged(
-                group, toRemoveMembers, MqEventType.GROUP_REMOVE_MEMBERS);
+        groupBroadcaster.fireMembersChanged(group,
+                toRemoveMembers, MqEventType.GROUP_REMOVE_MEMBERS);
     }
 
     @NotNull