为什么同样的网页在ubuntu下的tomcat 6中就是打不开？

[cloudcjl]

我的网页在windwos下的tomcat可以打开，在学校的linux服务器上也是可以部署运行的，但是我把它弄到ubuntu上的tomcat却打不开。
我应该已经配置好JDK和Tomcat了，以下是错误信息，好像是说我java越界了，但不可能的，我在winows下是好的，难道系统不一样JSP代码也不一样？？？请高手帮我看一下原因吧，谢谢！！

type Exception report

message

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 /index2.jsp at line 31

28: ArticleList articleList = new ArticleList("zyh");
29: for(int i=0;i<3;i++)
30: {
31: Article article=(Article)articleList.getArticles("natural gas").get(i);
32: out.println("<a href=\"update?url="+article.getLink()+"&title="+article.getTitle()+"&key=naturalgas\">"+article.getTitle()+"</a><br>");
33: //out.println("<a href=\"update?url=http://www.sina.com.cn"+"&title="+article.getTitle()+"&key=naturalgas\">"+article.getTitle()+"</a><br>");
34: out.println("<font size=\"2\" color='"+descColor+"'><I>"+article.getDescription()+"</I></font><br><br>");


Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
java.util.ArrayList.RangeCheck(ArrayList.java:547)
java.util.ArrayList.get(ArrayList.java:322)
org.apache.jsp.index2_jsp._jspService(index2_jsp.java:90)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

[速腾1994]

[cloudcjl]

有没有人帮我回答一下啊，是不是java配置的问题呢？