ireport and java web start

[marcoscorso]

hi, i have a classroom to execute an archive .jasper with the Java Web Start

 

Code:

ResultSet results = Conectar.execSQL( " select * from .... " ) ;
JRResultSetDataSource dataSource = new JRResultSetDataSource( results );
HashMap parameters = new HashMap();
JasperPrint rel = JasperFillManager.fillReport( this.getClass().getResourceAsStream("boleto_bbr.jasper"«») , parameters, dataSource);
JasperViewer viewer = new JasperViewer(rel, false);
viewer.setVisible(true);

 

when I execute my application in web, does not function, when I execute place, it functions.

 

the error in web :

"error loading expression class"

 

what I can make ?

[marcoscorso]

nothing ???