This is the repository for Jasper Reports in Odoo
Source : https://launchpad.net/openobject-jasper-reports
Blog for Installation : http://www.serpentcs.com/serpentcs-jasper-report-openerpodoo
If you are using workers, do use the jasper_load module and mention the module among the Server Wise load modules. i.e.: load=web,jasper_load