Hi I am facing problem generating chart using Apache POI.
I have Excel template file which contains blank chart
and predefined range of cells selected. what I do is,
I populate that template file with some data and want
chart to be updated accordingly.
Its giving me following exception:
java.lang.NullPointerException at
org.apache.poi.hssf.usermodel.HSSFSheet.setPropertiesFromSheet
(HSSFSheet.java:174)
at
org.apache.poi.hssf.usermodel.HSSFSheet.<init>(HSSFSheet.java:132)
at
org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:154)
at
com.changingworlds.nav.reporter.rm.csvgen.POIExcelChart.main
(POIExcelChart.java:36)
kindly let me know I can send my code snippet as well if needed.
I am confused and really stuck.
Kind regards and thanks.
Zulfiqar
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