When serialising objects to XML and specifying namespaces for properties using 
`@JacksonXmlRootElement(namespace = "http://...")`
Jackson will append or prepend ´wstxns1´ to the namespace. For example, say we have these classes:

**VtexSkuAttributeValues.java**

```
@JacksonXmlRootElement(localName = "listStockKeepingUnitName")
public class VtexSkuAttributeValues {

    @JacksonXmlProperty(localName = "StockKeepingUnitFieldNameDTO", namespace = "http://schemas.datacontract.org/2004/07/Vtex.Commerce.WebApps.AdminWcfService.Contracts")
    @JacksonXmlElementWrapper(useWrapping = false)
    private VtexSkuAttributeValue[] stockKeepingUnitFieldNameDTO;

    public VtexSkuAttributeValue[] getStockKeepingUnitFieldNameDTO() {
        return stockKeepingUnitFieldNameDTO;
    }

    public void setValues(VtexSkuAttributeValue[] values) {
        this.stockKeepingUnitFieldNameDTO = values;
    }
}

```

**VtexSkuAttributeValue.java**

```
@JacksonXmlRootElement(localName = "StockKeepingUnitFieldNameDTO", namespace = "http://schemas.datacontract.org/2004/07/Vtex.Commerce.WebApps.AdminWcfService.Contracts")
public class VtexSkuAttributeValue {

    private String fieldName;
    private FieldValues fieldValues;
    private int idSku;

    public int getIdSku() {
        return idSku;
    }

    public String getFieldName() {
        return fieldName;
    }

    public FieldValues getFieldValues() {
        return fieldValues;
    }

    public void setIdSku(int idSku) {
        this.idSku = idSku;
    }

    public void setFieldName(String fieldName) {
        this.fieldName = fieldName;
    }

    public void setFieldValues(FieldValues fieldValues) {
        this.fieldValues = fieldValues;
    }

    @JacksonXmlRootElement(localName = "fieldValues", namespace = "http://schemas.datacontract.org/2004/07/Vtex.Commerce.WebApps.AdminWcfService.Contracts")
    public static class FieldValues {
        @JacksonXmlProperty(namespace = "http://schemas.microsoft.com/2003/10/Serialization/Arrays")
        @JacksonXmlElementWrapper(useWrapping = false)
        public String[] string;

        public String[] getString() {
            return string;
        }

        public void setValues(String[] values) {
            this.string = values;
        }
    }
}

```

I then use the `XmlMapper` to serialise and get:

```
<listStockKeepingUnitName>
    <wstxns1:StockKeepingUnitFieldNameDTO xmlns:wstxns1="http://schemas.datacontract.org/2004/07/Vtex.Commerce.WebApps.AdminWcfService.Contracts">
        <fieldName>talle</fieldName>
        <fieldValues>
            <wstxns2:string xmlns:wstxns2="http://schemas.microsoft.com/2003/10/Serialization/Arrays">6184</wstxns2:string>
        </fieldValues>
        <idSku>258645</idSku>
    </wstxns1:StockKeepingUnitFieldNameDTO>
    <wstxns3:StockKeepingUnitFieldNameDTO xmlns:wstxns3="http://schemas.datacontract.org/2004/07/Vtex.Commerce.WebApps.AdminWcfService.Contracts">
        <fieldName>color</fieldName>
        <fieldValues>
            <wstxns4:string xmlns:wstxns4="http://schemas.microsoft.com/2003/10/Serialization/Arrays">6244</wstxns4:string>
        </fieldValues>
        <idSku>258645</idSku>
    </wstxns3:StockKeepingUnitFieldNameDTO>
</listStockKeepingUnitName>

```

Even though this is valid XML, the web service I'm working with doesn't accept it. I debugged it and it's due to the `wstxns` properties in the tags that Jackson adds for some reason.
Is there a way to prevent Jackson from adding that to the tags. The only workaround I could come up with is performing a string.replaceAll on the resulting XML but it's obviously not ideal.