When I execute this code on different versions,eg:aspose-cells-java-20.1,aspose-cells-java-20.12.In the cells-20.1,it’s ok.but in the cells-20.12,get a null pointer error.
Workbook workbook = new Workbook("test-export.xlsx");
WorksheetCollection worksheetCollection = workbook.getWorksheets();
WorksheetCollection worksheetCollection1 = workbook.getWorksheets();
Worksheet workSheet = worksheetCollection1.get(0);
worksheetCollection.removeAt(0);
int sheetIndex = worksheetCollection1.add();
Worksheet newSheet = worksheetCollection1.get(sheetIndex);
newSheet.copy(workSheet);
Cells cells = newSheet.getCells();
cells.deleteRows(15, 20, true);
is there something has changed in the cells-20.12?
test-export.zip (29.7 KB)