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Reload a jsp once a birt report is generated

TechiJoe

Hello , 
 
In JSP : I have a list of numbers. First time : On click of hyperlink, birt report is generated based on the input number. If I want to generate second report, I am getting a null pointer exception at 
"engine= createReportEngine(config);". 
 
All the values present in jsp are in "session". 
Also the list of nos. disapper once birt report is generated. 
 
So please let me know is there any way of generating multiple Birt Report on click of these hyperlink. 
Also How to retain the nos. in Jsp. <a class='bbc_url' href='http://www.birt-exchange.org/org/forum/public/style_emoticons/'>http://www.birt-exchange.org/org/forum/public/style_emoticons/</a><#EMO_DIR#>/confused.gif 
 
Am new to Java n Birt

. 
 
 
Thanks in Advance, 
-Regards

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TechiJoe

<blockquote class='ipsBlockquote' data-author="'TechiJoe'" data-cid="69735" data-time="1288095431" data-date="26 October 2010 - 05:17 AM">
Hello , 
 
In JSP : I have a list of numbers. First time : On click of hyperlink, birt report is generated based on the input number. If I want to generate second report, I am getting a null pointer exception at 
"engine= createReportEngine(config);". 
 
All the values present in jsp are in "session". 
Also the list of nos. disapper once birt report is generated. 
 
So please let me know is there any way of generating multiple Birt Report on click of these hyperlink. 
Also How to retain the nos. in Jsp. <a class='bbc_url' href='http://www.birt-exchange.org/org/forum/public/style_emoticons/'>http://www.birt-exchange.org/org/forum/public/style_emoticons/</a><#EMO_DIR#>/confused.gif 
 
Am new to Java n Birt

. 
 
 
Thanks in Advance, 
-Regards </blockquote>

TechiJoe

I could figure it out