[Axis2] prevent sending xsi information in soap message

Hi,

My axis2 (1.6.1) client adds "xsi:type=" information in the soap request. How to prevent this?
Old axis2 versions have a property "AxisEngine.PROP_SEND_XSI, Boolean.FALSE" available. How to do this in Axis2 1.6.x?

...
</ns8:Accnt>
<ns8:Amt>
<CurrencyAndAmount xmlns="http://www.equens.com/InterActive/schemas/common/v1.0/" xsi:type="CurrencyAndAmount_type0" Ccy="EUR">0.01</CurrencyAndAmount>
</ns8:Amt>
<ns8:DTLclTx>2014-06-03T08:45:45Z</ns8:DTLclTx>
<ns8:Stan>823597</ns8:Stan>
...


Thx
Robert van Dijk


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