Report with JTable of Text (Dynamic # of Columns)

I have a JTable in my Swing GUI app and I'm trying to figure out with JR and IReport how to create a report that will have the columns be dymamic.  Hence a crosstab that without the totaling, basically print the JTable contents as detail lines and column headers.

I cannot design a report template with a fixed set of columns and Dynamic Jasper is an issue since it does not support the latest JR (Cannot go back...)

So how can I create a report to print dynamic column jtables in JR??????