The server encountered an internal error () that prevented it from fulfilling th

这是报的错：请大家帮忙分析一下可能是哪里出了错，在线等待中。
description The server encountered an internal error () that prevented it from fulfilling this request.exception org.apache.jasper.JasperException: An exception occurred processing JSP page /showMyCart.jsp at line 5855:                         
56:                           <%
57:                           
58:                            for(int i=0;i<list.size();i++){      
59:                            NewGoods newGoods=(NewGoods)list.get(i);
60:                           out.println(newGoods.getGoodsName());
61:                          
Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:524)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:435)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
gnu06.wsp.servlet.ShoppingClServlet.doPost(ShoppingClServlet.java:50)
gnu06.wsp.servlet.ShoppingClServlet.doGet(ShoppingClServlet.java:20)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
gnu06.wsp.util.EncodingFilter.doFilter(EncodingFilter.java:26)
root cause java.lang.NullPointerException
org.apache.jsp.showMyCart_jsp._jspService(showMyCart_jsp.java:126)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
gnu06.wsp.servlet.ShoppingClServlet.doPost(ShoppingClServlet.java:50)
gnu06.wsp.servlet.ShoppingClServlet.doGet(ShoppingClServlet.java:20)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
gnu06.wsp.util.EncodingFilter.doFilter(EncodingFilter.java:26)
这边是源代码：<%@ page language="java" import="java.util.*" pageEncoding="GBK"%>
<%@ page import="gnu06.*" %>
<%@ page import="gnu06.wsp.bean.*" %>
<%@ page import="gnu06.wsp.dao.imple.*" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%
List list=(List)request.getAttribute("list");
 %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'showMyCart.jsp' starting page</title>
    
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">    
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--  
<link rel="stylesheet" type="text/css" href="styles.css">
-->  </head>
  
  <body>
   <table width="80%" border="1" >
  <tr>
    <td height="112" colspan="2" align="center">
     <jsp:include page="header.jsp"></jsp:include>
    </td>
  </tr>
  <tr>
    <td width="20%" height="367">&quot;<jsp:include page="left.jsp"></jsp:include>     </td>
    <td width="80%" align="left" valign="top"><table width="100%" border="1" bordercolor="#990099">
      <tr>
                            <td colspan="6" align="left">&nbsp;<jsp:include page="middle.jsp"></jsp:include>
                            </td>
          </tr>
                          <tr bordercolor="1" bgcolor="#FFFFCC">
                            <td height="108" colspan="3" bgcolor="#FFFFFF"><img src="image/myCart_tubiao2.jpg" width="184" height="106" /></td>
                            <td colspan="3" bgcolor="#FFFFFF"><span class="STYLE1">欢 迎 来 到 购 物 车！</span></td>
                          </tr>
                          <tr>
                            <td width="12%"><span class="STYLE2">序号</span></td>
                            <td width="12%"><span class="STYLE2">商品名称</span></td>
                            <td width="24%"><span class="STYLE2">商品价格</span></td>
                            <td width="16%"><span class="STYLE2">商品数量</span></td>
                            <td colspan="2" align="right"><span class="STYLE2">总金额</span></td>
                          </tr>
                        
                          <%
                          
                          for(int i=0;i<list.size();i++){      
                          NewGoods newGoods=(NewGoods)list.get(i);
                         
                          %>
                         
                         
                            <tr valign="top">
                            <td><span class="STYLE5"><%=newGoods.getGoodsId() %></span></td>
                            <td><span class="STYLE5"><%=newGoods.getGoodsName() %></span></td>
                            <td><span class="STYLE5"><%=newGoods.getGoodsPrice() %>元</span></td>
                            <td><input name="textfield" type="text" id="textfield" size="10" /> </td>
                                             
                            <td width="18%">删除</td>
                            <td width="18%" align="right"><span class="STYLE5">2100.0元</span></td>
                          </tr>
                     
                          <%
                          }
                             %>
                         
                      
 <tr>                                                                                        
                             <td colspan="6" align="right"><span class="STYLE6"><span class="STYLE7">总金额：</span>4100.00￥</span></td>
                         </tr>
                          <tr align="center">
                            <td height="17" colspan="2"><span class="STYLE4"><a href="<%=path %>/index.jsp">继续购物|</a></span></td>
                            <td width="24%"><span class="STYLE4">网银结账|</span></td>
                            <td width="16%"><span class="STYLE4">清空购物车|</span></td>
                            <td colspan="2"><span class="STYLE4">修改数量</span></td>
                          </tr>
                        </table></td>
  </tr>
  
  <tr>
    <td height="69" colspan="2" align="center">&quot;<jsp:include page="down.jsp"></jsp:include>
    </td>
  </tr>
</table>
  </body>
</html>