Dozer map null to modelview class

Question

I have a problem . I am using Dozer for mapping data in spring and hiberante but when using mapping , maps null to variables of modelview class.

Please help me.

This is Controller.java

@GetMapping("/getTraffic/{id}")
    public List getTrafficByEmpNo(@PathVariable(value = "id") Float empNo){
        return Dozer.mapList(dateFileService.getPersonTraffic(empNo),DataFileViewModel.class);
    }

This is Dozer.java

public static  <S, D> List<D> mapList(List<S> sourceList, Class<D> destinationClass) {
        List<D> destionationList = new ArrayList<>();
        for (S source : sourceList) {
            if (source != null) {
                destionationList.add(getMapper(destinationClass).map(source, destinationClass));
            }
        }
        return destionationList;
    }

    private static <D> DozerBeanMapper getMapper(Class<D> destinationClass){
        DozerBeanMapper mapper = new DozerBeanMapper();
        String packaging = destinationClass.getSimpleName();
        if (!packaging.contains("ViewModel")) {
            mapper.setMappingFiles(Arrays.asList("dozer/"+packaging.toLowerCase()+"/"+packaging.toLowerCase()+".xml"));
        } else {
            String classDozer = packaging.substring(0,packaging.indexOf("ViewModel")).toLowerCase();
            mapper.setMappingFiles(Arrays.asList("dozer/"+classDozer+"/"+classDozer+".xml"));
        }
        return mapper;
    }

this is dozer.xml

<?xml version="1.0" encoding="UTF-8"?>
<mappings xmlns="http://dozer.sourceforge.net"
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://dozer.sourceforge.net
      http://dozer.sourceforge.net/schema/beanmapping.xsd">
    <mapping>
        <class-a>org.sap.model.DataFile</class-a>
        <class-b>org.sap.web.viewModel.DataFile.DataFileViewModel</class-b>
    </mapping>
</mappings>