Problem unwrapping repeated elements (for maxOccurs>1) payloads using DOM databinding (from JAX-WS binding.ws impl)

@Remotable
public interface CrmService

{ public void test(String[] arr); }

generate the following WSDL:
<wsdl:definitions name="CrmServiceService" targetNamespace="http://interfaces/">
<wsdl:types>
<xs:schema targetNamespace="http://jaxb.dev.java.net/array" version="1.0">
<xs:complexType final="#all" name="stringArray">
<xs:sequence>
<xs:element maxOccurs="unbounded" minOccurs="0" name="item" nillable="true" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:schema>
<xs:schema attributeFormDefault="qualified" elementFormDefault="unqualified" targetNamespace="http://interfaces/">
<xs:element name="test">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded" minOccurs="0" name="arg0" nillable="true" type="xs:string"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="testResponse">
<xs:complexType/>
</xs:element>
</xs:schema>
</wsdl:types>
<wsdl:message name="test">
<wsdl:part name="test" element="test"> </wsdl:part>
</wsdl:message>
<wsdl:message name="testResponse">
<wsdl:part name="testResponse" element="testResponse"> </wsdl:part>
</wsdl:message>
<wsdl:portType name="CrmService">
<wsdl:operation name="test">
<wsdl:input message="test"> </wsdl:input>
<wsdl:output message="testResponse"> </wsdl:output>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="CrmServiceBinding" type="CrmService">
<SOAP:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="test">
<SOAP:operation/>
<wsdl:input>
<SOAP:body use="literal"/>
</wsdl:input>
<wsdl:output>
<SOAP:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="CrmService">
<wsdl:port name="CrmServiceSOAP11Port" binding="CrmServiceBinding">
<SOAP:address location="http://localhost:8087/CrmComponent/CrmService"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>

Calling the method form a simple java client causes:

GRAVE: java.lang.IllegalArgumentException: Argument is not an array
org.apache.tuscany.sca.databinding.TransformationException: java.lang.IllegalArgumentException: Argument is not an array
at org.apache.tuscany.sca.core.databinding.transformers.Array2ArrayTransformer.transform(Array2ArrayTransformer.java:100)
at org.apache.tuscany.sca.databinding.DefaultTransformerExtensionPoint$LazyPullTransformer.transform(DefaultTransformerExtensionPoint.java:209)
at org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:116)
at org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:232)
at org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:46)
at org.apache.tuscany.sca.databinding.DefaultTransformerExtensionPoint$LazyPullTransformer.transform(DefaultTransformerExtensionPoint.java:209)
at org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:116)
at org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediateInput(MediatorImpl.java:444)
at org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.processRequest(DataTransformationInterceptor.java:69)
at org.apache.tuscany.sca.core.invocation.InterceptorAsyncImpl.invoke(InterceptorAsyncImpl.java:57)
at org.apache.tuscany.sca.core.invocation.RuntimeInvoker.invoke(RuntimeInvoker.java:125)
at org.apache.tuscany.sca.core.invocation.RuntimeInvoker.invoke(RuntimeInvoker.java:108)
at org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointImpl.invoke(RuntimeEndpointImpl.java:298)
at org.apache.tuscany.sca.binding.ws.jaxws.JAXWSBindingProvider.invoke(JAXWSBindingProvider.java:207)
at org.apache.tuscany.sca.binding.ws.jaxws.JAXWSBindingProvider.invoke(JAXWSBindingProvider.java:61)
at com.sun.xml.internal.ws.api.server.InstanceResolver$1.invokeProvider(InstanceResolver.java:245)
at com.sun.xml.internal.ws.server.InvokerTube$2.invokeProvider(InvokerTube.java:145)
at com.sun.xml.internal.ws.server.provider.SyncProviderInvokerTube.processRequest(SyncProviderInvokerTube.java:67)
at com.sun.xml.internal.ws.api.pipe.Fiber.__doRun(Fiber.java:587)
at com.sun.xml.internal.ws.api.pipe.Fiber._doRun(Fiber.java:546)
at com.sun.xml.internal.ws.api.pipe.Fiber.doRun(Fiber.java:531)
at com.sun.xml.internal.ws.api.pipe.Fiber.runSync(Fiber.java:428)
at com.sun.xml.internal.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:232)
at com.sun.xml.internal.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:460)
at com.sun.xml.internal.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:233)
at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handleExchange(WSHttpHandler.java:95)
at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handle(WSHttpHandler.java:80)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:83)
at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:86)
at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:589)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:83)
at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:561)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:679)
Caused by: java.lang.IllegalArgumentException: Argument is not an array
at java.lang.reflect.Array.getLength(Native Method)
at org.apache.tuscany.sca.core.databinding.transformers.Array2ArrayTransformer.transform(Array2ArrayTransformer.java:89)
... 35 more