Camel containing soapjaxb dataformat cannot be started in fuse

Issue

I'm using following camel route within a blueprint.xml:

<route id="unmarshal">
    <from uri="direct:start"/>
    <unmarshal>
        <soapjaxb contextPath="test.mypackage" />
    </unmarshal>
    <to uri="log:anything"/>
</route>

Feature "camel-soap" is installed. Nevertheless when starting the route in Fuse I get the error:

javax.xml.bind.JAXBException: "org.xmlsoap.schemas.soap.envelope" doesnt contain ObjectFactory.class or jaxb.index
    at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:197)
    at sun.reflect.GeneratedMethodAccessor99.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)[:1.7.0_80]
    at java.lang.reflect.Method.invoke(Method.java:606)[:1.7.0_80]

Do I need to import org.xmlsoap.schemas.soap.envelope and if so how, using the maven felix plugin?