JFreeReport 

JFreeReport is a free Java class library for generating reports (GNU LGPL). Headers, footers, grouping, report functions, print preview, export to PDF and more. Complete source code included.
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JFreeChart 

JFreeChart is a free Java class library for generating charts (GNU LGPL). Pie charts, bar charts, line charts, time series charts, meter plots, candlestick plots, high-low-open-close and more. Complete source code included.
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Mouse Gestures 

Mouse Gestures is an open source (LGPL) pure Java library for recognition and processing mouse gestures. With Mouse Gestures you have a fast way to execute commands without using the keyboard, menus or toolbars.
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