diff --git a/src/main/webapp/jsp/common/menu.jsp b/src/main/webapp/jsp/common/menu.jsp
index f8aa5b0..65902cb 100644
--- a/src/main/webapp/jsp/common/menu.jsp
+++ b/src/main/webapp/jsp/common/menu.jsp
@@ -49,7 +49,13 @@
     	<li><a href="${contextPath}/pages/thread-sleep.jsp"> Thread : Thread 무한 대기 </a></li>
     	<li><a href="${contextPath}/pages/thread-sleep-3.jsp"> Thread : Thread 3초 대기 </a></li>
     	<li><a href="${contextPath}/pages/thread-sleep-1.jsp"> Thread : Thread 1초 대기 </a></li>
-    </ul>    
+    	<li><a href="${contextPath}/pages/thread-sleep-random.jsp"> Thread : Thread 4초 램덤대기 </a></li>
+    </ul>  
+    
+    <li>error</li>
+    <ul>
+    	<li><a href="${contextPath}/pages/error.jsp"> 에러발생 </a></li>
+    </ul>       
    
 
     
diff --git a/src/main/webapp/jsp/error.jsp b/src/main/webapp/jsp/error.jsp
new file mode 100644
index 0000000..5f3e7f5
--- /dev/null
+++ b/src/main/webapp/jsp/error.jsp
@@ -0,0 +1,20 @@
+<%@page import="java.util.Calendar"%>
+<%@ page language="java" contentType="text/html; charset=UTF-8"
+    pageEncoding="UTF-8"%>
+<%@ page import="java.util.Date" %>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+<title>Insert title here</title>
+</head>
+
+<%
+
+int temp = 100/0;
+
+
+%>
+
+
+</html>
\ No newline at end of file
