Jaspersoft uses a customized version of JFreeChart. In 6.6.0, the chart creation wizard is relatively smooth. You can create bar charts, pie charts, and scatter plots easily.
: Some users reported performance issues (slowness) in 6.6.0, often requiring manual adjustments to the jaspersoftstudio.ini file to increase memory allocation (e.g., Jaspersoft Community General Installation Steps JasperReports Library Files - SourceForge
