diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index 8236588..d8d8714 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -6,7 +6,7 @@
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleHome" value="C:/ProgramData/chocolatey/lib/gradle/tools/gradle-4.10.2" />
-        <option name="gradleJvm" value="12" />
+        <option name="gradleJvm" value="1.8" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
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 278f625..e5ea925 100644
--- a/src/main/java/com/example/cosmos_serversb/models/Groups.java
+++ b/src/main/java/com/example/cosmos_serversb/models/Groups.java
@@ -3,7 +3,6 @@
 import java.util.*;
 import javax.inject.Singleton;
 import com.example.cosmos_serversb.entities.*;
-import org.springframework.scheduling.support.SimpleTriggerContext;
 
 @Singleton
 public class Groups {
@@ -22,7 +21,7 @@
     }
 
     public static HashMap<String, String> getGroupsListByUid(String uId){
-        return createTestMap();
+        return createTestHashMap();
     }
 
     public static Group createGroup(String name, String uId){
@@ -53,19 +52,19 @@
     }
 
     public static HashMap<String, String> getMembersListByGid(String gId){
-        return createTestMap();
+        return createTestHashMap();
     }
 
     public static HashMap<String, String> addMember(String gId, String uId){
-        return createTestMap();
+        return createTestHashMap();
     }
 
     public static HashMap<String, String> deleteMember(String gId, String uId){
-        return createTestMap();
+        return createTestHashMap();
     }
 
     public static HashMap<String, String> getRequestsListByGid(String gId){
-        return createTestMap();
+        return createTestHashMap();
     }
 
     public static Request addRequests(String gId, String uId, String product, String deadline, int location){
@@ -93,7 +92,7 @@
     }
 
     //テスト用にHashMapの作成
-    public static HashMap<String, String> createTestMap(){
+    public static HashMap<String, String> createTestHashMap(){
         HashMap<String, String> testMap = new HashMap<>();
         testMap.put("123456780", "http://test0.com");
         testMap.put("123456781", "http://test1.com");