Java EE (Java Enterprise Edition) General Discussion

Hello,

I'm attempting to create a Jasper Report with several tables.
I am using a Table Model with two Columns(Jasper Report Format for SubReports, Data Source for the SubReports) .

When I use,

JRDesignExpression expression = new JRDesignExpression()
expression.setValueClass(net.sf.jasperreports.engine.JasperReport.class);
expression.setText("$F{JASPER_EXPR}");
designSubreport.setExpression(expression);


JRDesignExpression expression2 = new JRDesignExpression();
expression2.setValueClass(net.sf.jasperreports.engine.JRDataSource.class);
expression2.setText("$F{DATA_EXPR}");
designSubreport.setDataSourceExpression(expression2);


I'm getting the following exception,

java.lang.ClassCastException: net.sf.jasperreports.engine.JasperReport|

How to clear this exception?

Thanks for any help.

Thanks & Regards,
Sangeetha