diff --git a/src/com/rkcsd/apps/demo/BubbleSort.java b/src/com/rkcsd/apps/demo/BubbleSort.java
index 14838be..859e0dd 100644
--- a/src/com/rkcsd/apps/demo/BubbleSort.java
+++ b/src/com/rkcsd/apps/demo/BubbleSort.java
@@ -12,6 +12,10 @@ public class BubbleSort {
 
     }
 
+    public static void doNothingLoop() {
+        while (true);
+    }
+
     public static int[] sort(int[] a){
         int tmp;