Christian Schneider I see that Hibernate ORM's master branch (at version 5.1.0-SNAPSHOT) isn't producing a "wrap" statement for Ehcache, but this:

<bundle>mvn:net.sf.ehcache/ehcache/2.10.1</bundle>

Is that not the better solution already? Steve just suggested that if there's something wrong with the Ehcache OSGi headers, to let the Ehcache team know they are usually very helpful.