My Jboss throw a "java.lang.OutOfMemoryError " often! So I write a jsp to test it!

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<%@ page language="java" %>
<%@ page contentType="text/html; charset=GBK" %>
<%@ page import="java.io.*"%>
<%
Integer j = (Integer)session.getAttribute("i");
if(j == null)
{
j = new Integer(1);
}
int i = j.intValue();

String fileName = (String)session.getAttribute("fileName");
if(fileName == null)
{
fileName = "testjj1.jsp";
}

if(i > 100000)
{
fileName = "";
}
%>


Test.JSP
<meta http-equiv="refresh" content="0;url=<%=fileName%>">


<%
String filePath = getServletContext().getRealPath("/");
//String filePath = "D://bea//weblogic81//samples//server//examples//src//test//";
File file1 = new File(filePath + "testjj.jsp");

System.out.println((new java.util.Date()).toString() + " -- jj -- " + i);
filePath = filePath + "testjj" + i + ".jsp";
File file = new File(filePath);

InputStream stream = new FileInputStream(file1);
OutputStream bos = new FileOutputStream(file);
int bytesRead = 0;
byte[] buffer = new byte[8192];
while ((bytesRead = stream.read(buffer, 0, 8192)) != -1)
{
bos.write(buffer, 0, bytesRead);
}
bos.close();
stream.close();

file = null;
file1 = null;

i++;
session.setAttribute("i", new Integer(i));
session.setAttribute("fileName", "testjj" + i +".jsp");
%>
Just for Test!



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When the jsp number is 4325, Jboss throw a "java.lang.OutOfMemoryError
"!

What can I do? Who can help me!