Blueprint service registration does not validate interfaces

<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
           xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0"
           xmlns:ext="http://aries.apache.org/blueprint/xmlns/blueprint-ext/v1.0.0"
           default-activation="lazy">

    <bean id="nmrEndpointListener" class="com.fusesource.NMREndpointListener"/>

    <service ref="nmrEndpointListener">
        <interfaces>
            <value>org.apache.servicemix.nmr.api.event.ExchangeListener</value>
            <value>org.apache.servicemix.nmr.api.event.Listener</value>
        </interfaces>
    </service>
</blueprint>

<value>org.apache.servicemix.nmr.api.event.ExchangeListener</value>

<value>org.apache.servicemix.nmr.api.event.EndpointListener</value>