diff --git a/src/main/java/cactusServer/entities/Character.java b/src/main/java/cactusServer/entities/Character.java
index f435a04..671a985 100644
--- a/src/main/java/cactusServer/entities/Character.java
+++ b/src/main/java/cactusServer/entities/Character.java
@@ -1,6 +1,5 @@
 package cactusServer.entities;
 
-import java.net.URI;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -17,7 +16,6 @@
 	private Angle angle;
 	private CharacterModel model;
 	private String areaURI;
-
 	private HashMap<String, Item> itemMap = new HashMap<>();
 	private static final int UNIQUE_ID_LENGTH = 12;
 
@@ -58,10 +56,12 @@
 		return areaURI;
 	}
 	
+	@JSONHint(ignore = true)
 	public Item getItem(String itemId) {
 		return itemMap.get(itemId);
 	}
 	
+	@JSONHint(ignore = true)
 	public List<Item> getItems() {
 		List<Item> itemList = new ArrayList<>();
 		for (Item item : itemMap.values()) {
diff --git a/src/main/java/cactusServer/entities/Instance.java b/src/main/java/cactusServer/entities/Instance.java
index d324b19..e1b58e6 100644
--- a/src/main/java/cactusServer/entities/Instance.java
+++ b/src/main/java/cactusServer/entities/Instance.java
@@ -1,18 +1,15 @@
 package cactusServer.entities;
 
-import java.net.URI;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
-import java.util.Map;
 import java.util.Set;
 
 import cactusServer.entities.Entity;
 import cactusServer.entities.Object;
 import cactusServer.entities.Area.Allowed;
 import cactusServer.entities.Object.Attribute;
-import cactusServer.models.Instances;
 import cactusServer.utils.RandomStringGenerator;
 import cactusServer.entities.Character;
 import framework.model3D.Position3D;
diff --git a/src/main/java/cactusServer/entities/Object.java b/src/main/java/cactusServer/entities/Object.java
index 19f55f1..bed51eb 100644
--- a/src/main/java/cactusServer/entities/Object.java
+++ b/src/main/java/cactusServer/entities/Object.java
@@ -1,12 +1,10 @@
 package cactusServer.entities;
 
-import java.util.HashMap;
-
 import framework.model3D.Position3D;
 import framework.physics.AngularVelocity3D;
 import framework.physics.Velocity3D;
 
-public class Object extends Entity{
+public class Object extends Entity {
 	private Position3D position;
 	private Velocity3D velocity;
 	private AngularVelocity3D angularVelocity;
@@ -17,8 +15,9 @@
 	private Object() {
 		// JSONDecode���̌Ăяo���p
 	}
-	
-	public Object(Position3D position, Velocity3D velocity, AngularVelocity3D angularVelocity, Angle angle, Attribute attribute, ObjectModel model) {
+
+	public Object(Position3D position, Velocity3D velocity, AngularVelocity3D angularVelocity, Angle angle,
+			Attribute attribute, ObjectModel model) {
 		setPosition(position);
 		setVelocity(velocity);
 		setAngularVelocity(angularVelocity);
@@ -26,19 +25,19 @@
 		setAttribute(attribute);
 		setModel(model);
 	}
-	
+
 	public Position3D getPosition() {
 		return position;
 	}
-	
+
 	public Velocity3D getVelocity() {
 		return velocity;
 	}
-	
+
 	public AngularVelocity3D getAngularVelocity() {
 		return angularVelocity;
 	}
-	
+
 	public Angle getAngle() {
 		return angle;
 	}
@@ -50,19 +49,19 @@
 	public ObjectModel getModel() {
 		return model;
 	}
-	
+
 	public void setPosition(Position3D position) {
 		this.position = position;
 	}
-	
+
 	public void setVelocity(Velocity3D velocity) {
 		this.velocity = velocity;
 	}
-	
+
 	public void setAngularVelocity(AngularVelocity3D angularVelocity) {
 		this.angularVelocity = angularVelocity;
 	}
-	
+
 	public void setAngle(Angle angle) {
 		this.angle = angle;
 	}
@@ -74,24 +73,24 @@
 	public void setModel(ObjectModel model) {
 		this.model = model;
 	}
-	
+
 	public static class Attribute {
 		private boolean moveable; // �“�
 		private double cof; // ���C�W��
-		
+
 		public Attribute(boolean moveable, double cof) {
 			setMoveable(moveable);
 			setCof(cof);
 		}
-		
+
 		public boolean isMoveable() {
 			return moveable;
 		}
-		
+
 		public double getCof() {
 			return cof;
 		}
-		
+
 		public void setMoveable(boolean moveable) {
 			this.moveable = moveable;
 		}
diff --git a/src/main/java/cactusServer/entities/Plain.java b/src/main/java/cactusServer/entities/Plain.java
index fbe7603..cdbad6c 100644
--- a/src/main/java/cactusServer/entities/Plain.java
+++ b/src/main/java/cactusServer/entities/Plain.java
@@ -1,7 +1,5 @@
 package cactusServer.entities;
 
-import java.util.List;
-
 public class Plain {
 	private double a; // ���ʂ̕����� ax+by+cz+d ��a
 	private double b; // ���ʂ̕����� ax+by+cz+d ��b
@@ -11,30 +9,30 @@
 	private Plain() {
 		// JSONDecode���̌Ăяo���p
 	}
-	
+
 	public Plain(double a, double b, double c, double d) {
 		setA(a);
 		setB(b);
 		setC(c);
 		setD(d);
 	}
-	
+
 	public double getA() {
 		return a;
 	}
-	
+
 	public double getB() {
 		return b;
 	}
-	
+
 	public double getC() {
 		return c;
 	}
-	
+
 	public double getD() {
 		return d;
 	}
-	
+
 	public void setA(double a) {
 		this.a = a;
 	}
diff --git a/src/main/java/cactusServer/models/Instances.java b/src/main/java/cactusServer/models/Instances.java
index 45039ed..13aae02 100644
--- a/src/main/java/cactusServer/models/Instances.java
+++ b/src/main/java/cactusServer/models/Instances.java
@@ -1,22 +1,15 @@
 package cactusServer.models;
 
-import java.net.URI;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 
-import org.apache.commons.lang3.RandomStringUtils;
-
-import cactusServer.entities.AddressedEntity;
 import cactusServer.entities.CameraState;
 import cactusServer.entities.EmoteState;
 import cactusServer.entities.IDAddressedEntity;
 import cactusServer.entities.Instance;
 import cactusServer.entities.Player;
-import cactusServer.entities.StageModel;
 import cactusServer.utils.RandomStringGenerator;
-import net.arnx.jsonic.JSONHint;
 
 /**
  * �C���X�^���X���Ǘ�����N���X
@@ -29,7 +22,7 @@
 	private HashMap<String, Instance> instanceMap = new HashMap<>(); // instance��ID�Ǝ��̂��Ǘ�
 	private HashMap<String, Player> playerMap = new HashMap<>();
 	private static final int UNIQUE_ID_LENGTH = 12;
-	
+
 	private Instances() {
 
 	}
@@ -45,23 +38,27 @@
 		}
 		return theInstance;
 	}
-	
+
 	/**
 	 * �V����Instance�N���X���쐬����Map�ɒlj�����
+	 * 
 	 * @param name
 	 * @param state
 	 * @param stageModel
 	 * @return
 	 */
 	public IDAddressedEntity createInstance(String name, Instance.State state, String stageModel) {
-		String id = RandomStringGenerator.generateUniqueString(UNIQUE_ID_LENGTH, RandomStringGenerator.ALPHA_NUMERIC, instanceMap.keySet());
+		String id = RandomStringGenerator.generateUniqueString(UNIQUE_ID_LENGTH, RandomStringGenerator.ALPHA_NUMERIC,
+				instanceMap.keySet());
 		Instance instance = new Instance(name, state, stageModel);
 		instanceMap.put(id, instance);
 		return new IDAddressedEntity(id, instance);
 	}
-	
-	public IDAddressedEntity createPlayer(String instanceURI, String characterURI, CameraState cameraState, EmoteState.EmoteType animationClassToStart) {
-		String id = RandomStringGenerator.generateUniqueString(UNIQUE_ID_LENGTH, RandomStringGenerator.ALPHA_NUMERIC, playerMap.keySet());
+
+	public IDAddressedEntity createPlayer(String instanceURI, String characterURI, CameraState cameraState,
+			EmoteState.EmoteType animationClassToStart) {
+		String id = RandomStringGenerator.generateUniqueString(UNIQUE_ID_LENGTH, RandomStringGenerator.ALPHA_NUMERIC,
+				playerMap.keySet());
 		Player player = new Player(instanceURI, characterURI, cameraState, animationClassToStart);
 		playerMap.put(id, player);
 		return new IDAddressedEntity(id, player);
@@ -77,11 +74,11 @@
 	public Instance getInstance(String instanceId) {
 		return instanceMap.get(instanceId);
 	}
-	
+
 	public List<Player> getPlayers() {
 		return new ArrayList<Player>(playerMap.values());
 	}
-	
+
 	public Player getPlayer(String playerId) {
 		return playerMap.get(playerId);
 	}
@@ -96,7 +93,7 @@
 	public Instance destroyInstance(String instanceId) {
 		return instanceMap.remove(instanceId);
 	}
-	
+
 	public Player destroyPlayer(String playerId) {
 		return playerMap.remove(playerId);
 	}
diff --git a/src/main/java/cactusServer/utils/MyParamConverter.java b/src/main/java/cactusServer/utils/MyParamConverter.java
index 9f2cd8e..5c353cb 100644
--- a/src/main/java/cactusServer/utils/MyParamConverter.java
+++ b/src/main/java/cactusServer/utils/MyParamConverter.java
@@ -2,12 +2,11 @@
 
 import javax.ws.rs.ext.ParamConverter;
 
-import cactusServer.entities.StageModel;
 import net.arnx.jsonic.JSON;
 
 public class MyParamConverter implements ParamConverter<Object> {
 	private Class<?> type;
-	
+
 	public MyParamConverter(Class<?> type) {
 		this.type = type;
 	}
diff --git a/src/main/java/cactusServer/utils/MyParamConverterProvider.java b/src/main/java/cactusServer/utils/MyParamConverterProvider.java
index b29620d..1f5f41a 100644
--- a/src/main/java/cactusServer/utils/MyParamConverterProvider.java
+++ b/src/main/java/cactusServer/utils/MyParamConverterProvider.java
@@ -7,8 +7,6 @@
 import javax.ws.rs.ext.ParamConverterProvider;
 import javax.ws.rs.ext.Provider;
 
-import cactusServer.entities.StageModel;
-
 @Provider
 public class MyParamConverterProvider implements ParamConverterProvider {
 	@Override