I've been stuck on liquibase 3.0.8 since November 2019 (heh! Since
before corona...!), because I've been unable to make later versions log
to karaf.log.
But now I'm getting security warnings for liquibase 3, and the only way
out is to upgrade.
Does anyone else have a working setup for a recent version of liquibase?
In particular: does logging to karaf.log work?
Thanks!
The full story:
Liquibase originally had an extra adapter for logging, that used
reflection to scan for an adapter implementation. And that posed a
problem when using OSGi classloader.
Thanks to help from the karaf user mailing list[1], I was able to make
an existing project[2] into a bundle fragment and attach it to my
liquibase bundles.
I improved that approach into a handwritten karaf feature and a
repacking of [2], in[3].
And this worked find for me until I came to liquibase 3.1.1[4], and then it
started failing for me. It failed in a funny way, because the snapshots
I built myself worked fine, but the releases from maven central failed.
I eventually traced this down to an issue caused by the releases being
built by java8 and me running with java11[5].
I provided a PR to fix this issue[6], but that was never accepted, since
there would be no more releases to version 3[7].
The liquibase-slf4j package[4] has an upgrade to liquibase 4.
What I have tried, so far, is:
1. Bump liquibase to 4.x and bump the liquibase-slf4j package to a
version supporting liquibase 4
2. Bump liquibase to 4.x and drop liquibase-slf4j altogether (hoping
the java.util.logging (that is the liquibase 4.x default) would
automagically find its way to karaf.log
But in neither case logging from liquibase appeared in karaf.log.
All ideas for how to debug this further would be welcome.
A ready made solution for using liquibase 4.x would be even more
welcome! :-)
Thanks again!
- Steinar
REFERENCES:
[1] <https://lists.apache.org/thread/8qvjjwd40z0krfpp4h40rkd47fbbbpoc>
[2] <https://github.com/mattbertolini/liquibase-slf4j>
[3] <https://github.com/steinarb/liquibase-karaf-feature>
[4] <https://github.com/liquibase/liquibase/releases/tag/liquibase-parent-3.1.1>
[5] <https://github.com/liquibase/liquibase/issues/1254>
[6] <https://github.com/liquibase/liquibase/issues/1254#issuecomment-699611630>
[7] <https://github.com/liquibase/liquibase/issues/1254#issuecomment-985743534>
