diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index d8d8714..a20886e 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -6,12 +6,12 @@
         <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="1.8" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
           </set>
         </option>
+        <option name="useQualifiedModuleNames" value="true" />
       </GradleProjectSettings>
     </option>
   </component>
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 4ff842e..bc8d0a3 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,14 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="EntryPointsManager">
-    <list size="1">
-      <item index="0" class="java.lang.String" itemvalue="com.fasterxml.jackson.annotation.JsonIgnore" />
-    </list>
-  </component>
-  <component name="JavaScriptSettings">
-    <option name="languageLevel" value="ES6" />
-  </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="false" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/sbt.xml b/.idea/sbt.xml
deleted file mode 100644
index 2018743..0000000
--- a/.idea/sbt.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ScalaSbtSettings">
-    <option name="customVMPath" />
-  </component>
-</project>
\ No newline at end of file
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 db5cd0b..804a7dd 100644
--- a/src/main/java/com/example/cosmos_serversb/models/Groups.java
+++ b/src/main/java/com/example/cosmos_serversb/models/Groups.java
@@ -2,6 +2,7 @@
 
 import java.util.*;
 import javax.inject.Singleton;
+import java.util.Date;
 
 import com.example.cosmos_serversb.entities.*;
 import com.example.cosmos_serversb.jsons.*;
@@ -105,8 +106,8 @@
         //テスト用
         String rId = getInstance().createRId();
         String uri = baseURI + AppName + "/groups/" + gId + "/requests/" + rId;
-        Request testRequest = new Request(rId, uri, "1999/01/01/15:00:00",
-                                            uId, product, "1999/01/01/15:00:00", 999);
+        Request testRequest = new Request(rId, uri, new Date(1999,01,01),
+                                            uId, product, new Date(1999,12,01), 999);
         return testRequest;
     }
 
@@ -117,8 +118,8 @@
     public static Request updateRequest(String gId, String rId, String uId, String product, String deadline, int location, boolean done){
 
         //テスト用
-        Request testRequest = new Request(rId, "http://test.com", "1999/01/01/15:00:00",
-                                            uId, product, "1999/01/01/15:00:00", 999);
+        Request testRequest = new Request(rId, "http://test.com", new Date(1999,01,01),
+                                            uId, product, new Date(1999,12,01), 999);
 
         return testRequest;
     }