DJ in packaged in a single jar file. download DynamicJasper
DJ stands on JasperReports (since DJ 3.0.5 JasperReports 3.5 is needed), so you will need these jars too. download Jasper Reports from SourceForge
Note that JasperReports need some other files in order to export the report to pdf, xls (Excel), rtf (MS Word), etc.
Below there is a list for the minimum libraries needed