ClassCastException with JSP

Question

I'm getting this weird exception when I load a jsp form:
java.lang.ClassCastException: fxmatcher.FxFormBean
Here's the line in the generated Java file (from the original JSP)where the exception occurred:
fxFormBean = (fxmatcher.FxFormBean)request.getAttribute("fxFormBean");
The weird problem is that I only get the error the first time I load the jsp. If I reload it, everything is fine.
Here are some relevant snippets from the jsp:
<jsp:useBean id="fxFormBean" class="fxmatcher.FxFormBean" scope="request"/>
<%@ page import="java.util.*,java.io.*, java.lang.*" %>
Does any one know why this is happening? I think it has something to do with request.getAttribute returning a null because the bean is not instantiated yet when I call the jsp the first time, but I'm not sure. If this is indeed the case, how can I rewrite my jsp so that this doesn't happen again? Thanks for your help

Answer 1

Sure thing.
Here's the stack trace:
java.lang.ClassCastException: fxmatcher.FxFormBean
at jsp_servlet.__index._jspService(__index.java:90)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
relevant snippets of compiled code:
/* compiled from JSP: /index.jsp
* This code was automatically generated at 4:12:26 PM on Aug 27, 2003
* by weblogic.servlet.jsp.Jsp2Java -- do not edit.
javax.servlet.http.HttpSession session = request.getSession(true);
try { // error page try block
fxmatcher.FxFormBean fxFormBean = null; //[ /index.jsp; Line: 1]
fxFormBean = (fxmatcher.FxFormBean)session.getAttribute("fxFormBean"); //[ /
index.jsp; Line: 1]
if (fxFormBean == null) { // begin 'fxFormBean' instantiation block... //[ /
index.jsp; Line: 1]
synchronized (session) { //[ /index.jsp; Line: 1]
fxFormBean = (fxmatcher.FxFormBean)session.getAttribute("fxFormBean"
); //[ /index.jsp; Line: 1]
if (fxFormBean == null) { // begin 'fxFormBean' synchronized instant
iation block... //[ /index.jsp; Line: 1]
fxFormBean = new fxmatcher.FxFormBean(); //[ /index.jsp; Line: 1
session.setAttribute("fxFormBean", fxFormBean); //[ /index.jsp;
Line: 1]
} // end synchronized bean instantiation block... //[ /index.jsp; Li
ne: 1]
} // end synchronized bean scope block... //[ /index.jsp; Line: 1]
} // end bean instantiation block... //[ /index.jsp; Line: 1]
out.print("\r\n");