/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/ is in libjcharts-java-doc 0.7.5-3.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IAxisChartDataSet.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IAxisDataSeries.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IAxisPlotDataSet.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IData.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IDataSeries.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IDataSet.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IPieChartDataSet.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IScatterPlotDataSeries.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IScatterPlotDataSet.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/IStockChartDataSet.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/package-frame.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/package-summary.html
/usr/share/doc/libjcharts-java/api/org/jCharts/chartData/interfaces/package-tree.html