: It can be found in legacy repositories like java2s.com or extracted from the iReport 3.5.3 source code.
Creating Jasper Reports In (iReport) Using XML As Data Source jasperreports-extensions-3.5.3.jar download
For those who prefer a bundled approach, the entire JasperReports Library version 3.5.3 distribution includes the extensions JAR. : It can be found in legacy repositories like java2s
gradle dependencies