SoapUI generates JSON property for namespace - json

Question

I generate a WADL with CXF as described in CXF – Missing WADL method parameter element types with JSON JAX-RS services.
I tried to generate the JSON request body in SoapUI ("Recreates a default representation from the schema"), but I get the wrong JSON including namespace.
Code:
CXF configuration:
<bean id="wadlGenerator" class="org.apache.cxf.jaxrs.model.wadl.WadlGenerator">
<property name="linkJsonToXmlSchema" value="true" />
</bean>
<jaxrs:server address="/rest/1" id="test" staticSubresourceResolution="true">
<jaxrs:serviceBeans>
<ref bean="testResource" />
</jaxrs:serviceBeans>
<jaxrs:providers>
<bean class="com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider" />
<ref bean="wadlGenerator" />
</jaxrs:providers>
</jaxrs:server>
WADL:
<?xml version="1.0"?>
<application xmlns:prefix1="http://www.test.com/test" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://wadl.dev.java.net/2009/02">
<grammars>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://www.test.com/test" targetNamespace="http://www.test.com/test" elementFormDefault="unqualified" attributeFormDefault="unqualified">
<xs:import/>
<xs:element name="testModel" type="testModel"/>
</xs:schema>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://www.test.com/test" targetNamespace="http://www.test.com/test" elementFormDefault="unqualified" attributeFormDefault="unqualified">
<xs:complexType name="testModel">
<xs:sequence>
<xs:element name="id" type="xs:string"/>
<xs:element name="name" type="xs:string" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
</xs:schema>
</grammars>
<resources base="http://localhost:8080/test-app/services/rest/1">
<resource path="/test">
<method name="POST">
<request>
<representation mediaType="application/json" element="prefix1:testModel"/>
</request>
<response status="204"/>
</method>
</resource>
</resources>
</application>
JSON:
{
"#xmlns:test": "http://www.test.com/test",
"id": "?",
"name": "?"
}
Is that a bug/missing feature of SoapUI or is there something wrong with my WADL?