anonymous wrote : How can I produce "fictive" copy? | | That means, if I really want to copy only into 2-d parameter, how | can I "simulate" copy into 1-st parameter and really leave it untouched? Well, the real problem is, according to your schema, the description element must be present: <element name="description" nillable="true" type="string"/> | <element name="id" nillable="true" type="string"/> nillable="true" means that the attribute xsi:nil may appear in the element, indicating that its value should be considered null. It does not mean that the element is optional. The following code gives the desired effect: <assign> | <copy> | <from expression="'true'" /> | <to variable="_createOrderMessage" part="root" query="/root/impl3:customerRoot/impl4:description/@xsi:nil" | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" /> | </copy> | <copy> | <from variable="_start" part="ID"/> | <to variable="_createOrderMessage" part="root" query="/root/impl3:customerRoot/impl4:id"/> | </copy> | </assign> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3998019#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...