Java EE (Java Enterprise Edition) General Discussion

Hi guys,

Here is the snippet of jsp code which is giving me problem

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<img src="ReportController?<%=queryString%>&ChartType=Clustered" useMap="#chartMap" border="0">

<%
Vector v = ( Vector )request.getSession().getAttribute( ReportController.ATTRIB_REPORT_VEC );

ChartMap cm = ( ( JCChart )v.elementAt( 1 ) ).getChartMap();
%>
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Now in theory, forst of all img tag should call to ReportController servlet which is returning an image and setting a session vector. And then the code within <%%> should be executed. However it looks like jsp is executing code within <%%> first and then the html code (img tag). And as a result, I am getting a NULL pointer error on ChartMap cm .... line. Is there a way I can explicitly call ReportController to make sure vector v is being set before code in <%%> is executed? I've tried using jsp:include but doesn't work,

Appreciate your help,

Regards,
Hassan Sheikh.