This reverts commit b7ce6119.

Our per-push CI does not cover Scala 2.12 so we didn't notice that
ScalaShellITCase does not actually pass.

This closes #11759

This closes #11333.

This closes #11324.

This property is only relevant for metrics; hence there's no reason for this property to be defined in the root pom.
The name was changed since it was inconsistent with current naming conventions (<library>.version).

[FLINK-16121][python] Introduce ArrowReader and ArrowWriter for reading and writing Arrow format data

This closes #11112.

With jakarta EE having made their first releases projects may start transitioning to the re-branded versions.
The package names are identical (for now?), so we should be fine as long as we ensure that at least one version is on the classpath.

For the time being we stay on the "original" dependencies, but we may have to switch eventually.

This closes #11050.

Some noise reduction.

We no longer need builds for vendor specific repos as Flink no longer
bundles Hadoop dependencies. Putting the dependencies on the classpath
should be good enough.

add shim to support hive orc version less than 2.3

this closes #10618.

This closes #10509.