Exception in thread "main" org.apache.xmlbeans.impl.values.XmlValueDisconnectedException
at org.apache.xmlbeans.impl.values.XmlObjectBase.check_orphaned(XmlObjectBase.java:1213)
at org.openxmlformats.schemas.spreadsheetml.x2006.main.impl.CTCellImpl.getF(Unknown Source)
at org.apache.poi.xssf.usermodel.XSSFCell.getCellType(XSSFCell.java:529)
at seven22.RowsFilter.isValidCell(RowsFilter.java:128)
at seven22.RowsFilter.isValidRow(RowsFilter.java:75)
at seven22.RowsFilter.generateSheet(RowsFilter.java:205)

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