List<ShipInventoryReportDataVO> lstShipInvData = shipInventoryReportDAO
    .getShippableInventoryReportData(inputVO, true);

ShipInventoryReportDataVO is my object class and getting the data from a stored procedure. In ShipInventoryReportDataVO object class I have a field called productCode and the data of productCode will in alphanumeric like

0123, 
654, 
sparem, 
3205, 
the wholeland, 
10, 
1. 

when I am sorting the productCode which is in object class, I am getting the output as

0123
1
10
3205
654
sparem
wholeland.

this is the code I tried to sort

List<ShipInventoryReportDataVO> lstShipInvData = shipInventoryReportDAO.getShippableInventoryReportData(inputVO, true);
                
Collections.sort(lstShipInvData, 
    (o1, o2) -> 
        (o1.getProductCode().compareTo(o2.getProductCode()))
);

and this

lstShipInvData = (List) lstShipInvData.stream()
        .sorted(Comparator.comparing(
            ShipInventoryReportDataVO::getProductCode
        ))
        .collect(Collectors.toList());

both the codes gets output as above

but I need the output as below

1
10
654
0123
3205
sparem
wholeland

This is the code which i tried now

List<ShipInventoryReportDataVO> productCodes = shipInventoryReportDAO.getShippableInventoryReportData(inputVO, true);

Comparator<String> byProductCode = Comparator.comparingInt(String::length)
                        .thenComparing(Comparator.naturalOrder());

productCodes.sort(Comparator.comparing(
                        ShipInventoryReportDataVO::getProductCode, byProductCode
));

productCodes.forEach(System.out::println);
System.out.println(productCodes.toString());