PAXCDI-196 - It does not work to intercept the events start and stop the bundles.

[Lokot]

PAXCDI-196: fix NPE in ServiceEventBridge, enabled BundleEventBridge and fire events to observers

[hwellmann]

Please mind the indentation and formatting conventions before creating a pull request. It's hard to see your actual changes.

Pax CDI uses the formatter from https://github.com/ops4j/org.ops4j.pax.exam2/blob/master/assets/EclipseJavaFormatter.xml.

[Lokot]

I changed the code formatting. Please look.

[kwesterfeld]

Please review and accept this PR. I myself would like to use pax-cdi but there is no way to hook bundle stopped. Unfortunately, the lifecycle handling for @PreDestroy seems to only work when you shutdown the container. In my case, I was using Karaf. My expectation was that @PreDestroy would be called on bundle stop, which is not the case. Nor does it get called on bundle update.

This patch would give me another route to hook shutdown logic, which I require.

[astefanutti]

Can that PR be reviewed and eventually merged?

[hwellmann]

We don't merge PRs without tests.

This topic is known to fail a test, see comments in https://ops4j1.jira.com/browse/PAXCDI-6 for details.

If someone can make bundle events work in a robust manner and provide reasonable test coverage, I'm happy to merge the solution.

[astefanutti]

@hwellmann thanks for the details. That's clearer what the status is.