I am getting this error. the method getBinaryStream() is undefined for the type Object net.sfjasperreports.engine.design.JRdesignexpression@be4d44 I am using Jasper 4.0.0. What do I need to add to my installation. I have hsqldb-1.8.jar jasperreports-extensions-3.5.3.jar sqljdbc4.jar jtds.jar