I had tried a config file just like the config file illustrated in your last message. I just tried it again to double check my initial result. While it is true that the illegal annotations error is avoided by using the Method construct, it is still the case that the unmarshalling of the example xml file: <?xml version="1.0" encoding="UTF-8"?> | <UnitPrice value="40.0" xsi:noNamespaceSchemaLocation="C:\UnitPrice.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/> | appears to fail with JAXBIntros with the error: anonymous wrote : junit.framework.AssertionFailedError: get double value error expected:<40.0> but was:<0.0> Works fine with JAXB Proper, however. I'm continuing to investigate because jaxb-intros will be invaluable for my project if I can get it to work. If there exists a working example of similar (i.e. very simple) complexity can someone post it? Regards, Sylvia View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073397#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...