JAX-RS REST server causes long bundle starting time in OSGi blueprint

I've encountered a weird problem when creating a REST server in blueprint.

The bundle has nothing but a simple server that contains one service bean, configured like this:

<jaxrs:server address="/test" id="testRestService">
	<jaxrs:serviceBeans>
		<ref component-id="defaultTestRestService" />
	</jaxrs:serviceBeans>
</jaxrs:server>

<bean id="defaultTestRestService" class="de.maxdev.resttest.DefaultTestRestService" />

When I deploy this bundle on Karaf in a Linux environment, the bundle remains in the "Starting" state for about 120 seconds. On Windows however, it starts in about 3 seconds. When not taking care of bundle deployment order, this will block all the other bundles, too.

Is this a bug or a misconfiguration? Maybe this is caused some lower-level socket issue?