I found some time to work more on this. After fixing the bug in OsgiServiceUtil (github commit), Hibernate starts. JBoss Fuse now crash on Aries, since Aries doesn't support JPA2.1. I see you branch at

Maven says

java.lang.NoClassDefFoundError: org/sonatype/aether/resolution/ArtifactResolutionException
        at java.lang.Class.getDeclaredConstructors0(Native Method)
        at java.lang.Class.privateGetDeclaredConstructors(Class.java:2398)
        at java.lang.Class.getDeclaredConstructors(Class.java:1838)
        at com.google.inject.spi.InjectionPoint.forConstructorOf(InjectionPoint.java:245)
...
Caused by: java.lang.ClassNotFoundException: org.sonatype.aether.resolution.ArtifactResolutionException

Internet point some migration in Maven 3 (link). I the same error with Maven 2 though.

It would be easier to start using Hibernate OSGi if we could pull the fork of ARIES from somewhere. Not build it ourself and publish it to our local Nexus. I see you already have some snapshots of aries jpa at repository.jboss.org/nexus (link). Is it possible to publish your branch there as well?