Java Development Tools

Hi

iuse ireport 4.7.0 and jdev 11.1.1.7

I created an ireport report and called it from adf .

then i add a background image to the report :

in ireport xml file , that is  : <imageExpression><![CDATA["//my_pic.jpg"]]></imageExpression>

and my_pic.jpg is located to same path of myreport.jrxml .

so in ireport it works fine .

BUT in ADF , console show error as

net.sf.jasperreports.engine.JRException: Byte data not found at : //my_pic.jpg

How can i set address of image in iReport even it works in ADF ?

Thanks