[hibernate-dev] replace Pax Exam with Docker

[Brett Meyer]

<tired-rant>

I'm fed up with Pax Exam and would love to replace it as the 
hibernate-osgi integration test harness.  Most of the Karaf committers 
I've been working with hate it more than I do.  Every single time we 
upgrade the Karaf version, something less-than-minor in hibernate-osgi, 
upgrade/change dependencies, or attempt to upgrade Pax Exam itself, 
there's some new obfuscated failure.  And no matter how much I pray, it 
refuses to let us get to the container logs to figure out what 
happened.  Tis a house of cards.

</tired-rant>

One alternative that recently came up elsewhere: use Docker to bootstrap 
the container, hit it with our features.xml, install a test bundle that 
exposes functionality externally (over HTTP, Karaf commands, etc), then 
hit the endpoints and run assertions.

Pros: true "integration test", plain vanilla Karaf, direct access to all 
logs, easier to eventually support and test other containers.

Cons: Need Docker installed for local test runs, probably safer to 
isolate the integration test behind a disabled-by-default Maven profile.

Any gut reactions?

OSGi is fun and I'm not at all bitter,

-Brett-

;)