diff --git a/src/main/java/cactusServer/models/CollisionManager.java b/src/main/java/cactusServer/models/CollisionManager.java
index 790b036..44c9d3c 100644
--- a/src/main/java/cactusServer/models/CollisionManager.java
+++ b/src/main/java/cactusServer/models/CollisionManager.java
@@ -10,23 +10,25 @@
 import cactusServer.entities.Instance;
 import cactusServer.entities.Object;
 import cactusServer.entities.Player;
+import net.arnx.jsonic.JSONHint;
 
 public class CollisionManager {
 	private static CollisionManager theInstance;
 	private HashMap<String, Instance> instances;
-	private ArrayList<CollisionResult> resultList;
+	private ArrayList<CollisionResult> resultList = new ArrayList<CollisionResult>();
 
 	private CollisionManager() {
 		instances = Instances.getInstance().getInstances();
 	}
 
-	public static CollisionManager getCollision() {
+	public static CollisionManager getInstance() {
 		if (theInstance == null) {
 			theInstance = new CollisionManager();
 		}
 		return theInstance;
 	}
-
+	
+	@JSONHint(ignore = true)
 	public ArrayList<CollisionResult> getResultList() {
 		return resultList;
 	}
diff --git a/src/main/java/cactusServer/utils/App.java b/src/main/java/cactusServer/utils/App.java
index f2b4b09..86717fc 100644
--- a/src/main/java/cactusServer/utils/App.java
+++ b/src/main/java/cactusServer/utils/App.java
@@ -40,7 +40,7 @@
 
 	public App() {
 		int interval;
-		if(debugflag == true) {
+		if(debugflag) {
 			interval = 1000;
 		}else {
 			interval = 1;
@@ -51,6 +51,7 @@
 		BulletModelManager.getInstance();
 		Instances.getInstance();
 		Accounts.getInstance();
+		CollisionManager.getInstance();
 		initDummy();
 		start(interval);
 		System.out.println("pass");
@@ -59,7 +60,7 @@
 	@Override
 	public void run() {
 		// System.out.println("�^�X�N�����s");
-		CollisionManager.getCollision().collisionRun(System.nanoTime() - lasttime);
+		CollisionManager.getInstance().collisionRun(System.nanoTime() - lasttime);
 		removeInactivePlayers();
 		lasttime = System.nanoTime();
 	}