20.3. features.xml
Apache Karaf environments tend to make heavy use of its "features" concept, where a feature is a set of order-specific bundles focused on a concise capability.
These features are typically defined in a features.xml file.
Hibernate produces and releases its own features.xml that defines a core hibernate-orm, as well as additional features for optional functionality (caching, Envers, etc.).
This is included in the binary distribution, as well as deployed to the JBoss Nexus repository (using the org.hibernate groupId and hibernate-osgi with the karaf.xml classifier).
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Note that our features are versioned using the same ORM artifact versions they wrap. Also, note that the features are heavily tested against Karaf 3.0.3 as a part of our PaxExam-based integration tests. However, they’ll likely work on other versions as well.
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hibernate-osgi, theoretically, supports a variety of OSGi containers, such as Equinox.
In that case, please use features.xml as a reference for necessary bundles to activate and their correct ordering.
However, note that Karaf starts a number of bundles automatically, several of which would need to be installed manually on alternatives.
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