jCrosstab is an API to convert JDBC ResultSet objects to a set of arrays that translate the data from Tabular (or MultiTabular) to CrossTab or Multi-Crosstab. The idea is similar to an Excel Pivot Table, but more powerful.
NESD-Imaging is a 2D rendering framework for Java. It combines JAI and Java2D and extends them by providing lazy rendering (do not block UI). It provides geo-positionned images rendering (à la google-map). It scales well to large image set (>500GB).