[Java] Question about new driver

### What would you like help with?

I'm thinking of implementing an adbc driver for AWS Athena. And our codebase is in java. It looks like there is no driver in java implemented yet. So is it more preferred to implement it in other language like C++ or Go and use it in Java?

The issue mentions no files, tests, or entry points. Clarify whether an AWS Athena driver is wanted in Java or another supported language, then document the preferred implementation path and completion criteria.

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