Is there any way to omit a minOccurs="0" element in Axis 1.1 ?

[Igor Mekterović]

Here's a snipplet of my code:

JAVA:
ElementDesc ed = new ElementDesc();
ed.setFieldName("dataSourceInfo");
ed.setXmlName(new QName("http://tempuri.org/type";, "DataSourceInfo"));
ed.setMinOccurs(0); // is this supposed to do the trick?
typeDesc.addFieldDesc(ed);
...

but the DataSourceInfo element persistently keeps appearing in the SOAP:

SOAP:
...
<DataSourceInfo xsi:type="xsd:string" xsi:nil="true"/>
...

and I was expecting it to be omitted since: ed.setMinOccurs(0).

Did I get it wrong or it can't be done?

Thanks in advance,

Igor Mekterovic