diff --git a/src/main/java/com/example/cosmos_serversb/entities/Group.java b/src/main/java/com/example/cosmos_serversb/entities/Group.java
index 268ba49..47ac114 100644
--- a/src/main/java/com/example/cosmos_serversb/entities/Group.java
+++ b/src/main/java/com/example/cosmos_serversb/entities/Group.java
@@ -3,6 +3,7 @@
 
 import com.example.cosmos_serversb.models.SessionManager;
 import com.example.cosmos_serversb.models.Users;
+import com.sun.corba.se.impl.orbutil.graph.Graph;
 import org.hibernate.Session;
 
 import java.util.ArrayList;
diff --git a/src/main/java/com/example/cosmos_serversb/models/Groups.java b/src/main/java/com/example/cosmos_serversb/models/Groups.java
index f3d8f2b..5d58b66 100644
--- a/src/main/java/com/example/cosmos_serversb/models/Groups.java
+++ b/src/main/java/com/example/cosmos_serversb/models/Groups.java
@@ -18,7 +18,7 @@
     private static String AppName = "cosmos";
 
     private Groups(){
-        sessionFactory = SessionFactoryManager.getInstance().getSessionFactory();
+        //sessionFactory = SessionFactoryManager.getInstance().getSessionFactory();
     }
 
     public static Groups getInstance(){
diff --git a/src/main/java/com/example/cosmos_serversb/resources/GroupsRest.java b/src/main/java/com/example/cosmos_serversb/resources/GroupsRest.java
index 3418f65..864698f 100644
--- a/src/main/java/com/example/cosmos_serversb/resources/GroupsRest.java
+++ b/src/main/java/com/example/cosmos_serversb/resources/GroupsRest.java
@@ -37,13 +37,16 @@
         SessionManager.getInstance().getSession();
         Groups.addMember(group.getgId(), uId);
         SessionManager.getInstance().closeSession();
+        String json = mapper.writeValueAsString(group);//このJSONには、グループを作成したユーザの情報が含まれていません。
 
-        String json = mapper.writeValueAsString(group);
         //以下が思うように動かない。
 //        Session session = SessionManager.getInstance().getSession();
 //        Group editedGroup = (Group) session.load(Group.class, group.getgId());//editedGroupの値がおかしい？
 //        String json = mapper.writeValueAsString(editedGroup);
+//        Group tmpGroup = new Group(session.load(Group.class, group.getgId()));
+//        String json = mapper.writeValueAsString( tmpGroup );
 //        SessionManager.getInstance().closeSession();
+
         return json;
     }