[FLINK-30371] Fix the problem of JdbcOutputFormat database connection leak

[KevDi]

I have redone the Fix from #5 because no more action is going on there.
I updated to the latest version of the main branch and also added the needed tests.
Hope this is fine so far.

[boring-cyborg]

Thanks for opening this pull request! Please check out our contributing guidelines. (https://flink.apache.org/contributing/how-to-contribute.html)

[KevDi]

Any news on that?

[eskabetxe]

Hi @KevDi ,
Checks are not passing, please fix the commit message.
Thanks

[KevDi]

Hi @eskabetxe is there a format that should be used for the Commits?

[eskabetxe]

Should be on same format that you put on title of PT
[FLINK-XXXXX] Some text

And merge commits should be avoided..

Current you have 3 commit messages, the ideal is 1

The commit in the middle is ok, the other 2 no

[KevDi]

Ok i try to compress the commits to one single commit :)

[KevDi]

@eskabetxe had to experience a little bit but now it seems that only one commit is there =)

[eskabetxe]

@MartijnVisser could you approve the workflow please

[KevDi]

@eskabetxe @MartijnVisser i looked into this error but i was unable to resolve it. I removed the mentioned import with explicit imports but then i get an error telling me that some of the static imports are imported before others. If i used the Sort Imports´ on Intellij it removed the imports with the .*` version. Maybe i need some support with that.

[MartijnVisser]

@KevDi You'll need to rebase, the Flink project doesn't do merge commits.

[KevDi]

@MartijnVisser i have done the rebase.

[KevDi]

@MartijnVisser any updates on this?