Baystar wants its money back.
The Object Refinery has posted version 0.9.18 of JFreeChart, an open source library based on Java2D. JFreeChart can produce pie charts, line charts, various kinds of bar charts, XY plots and scatter plots, time series, high/low/open/close charts, candle stick charts, and combination charts. This release adds polar plots, sorted/unsorted XYSeries, intervals for domain and range markers, and item labels for XYItemRenderers. This is a bug fix release. JFreeChart is published under the LGPL.