Java: Fix track configuration

[stkent]

v3.3.0 of configlet reports:

$ configlet lint .
-> An implementation for '.idea' was found, but config.json does not reference this exercise.
-> An implementation for '.gradle' was found, but config.json does not reference this exercise.
-> The implementation for '.idea' is missing an example solution.
-> The implementation for '.gradle' is missing an example solution.
-> The implementation for '.gradle' is missing a test suite.

We should investigate these warnings.

[Smarticles101]

This could be fixed with the ignored key in config.json, however, support for that was removed. Ref. #633 exercism/meta#3

[stkent]

I wonder if configlet could be updated to respect the .gitignore

[stkent]

Ref.: https://github.com/exercism/configlet/issues/108

[FridaTveit]

Looks like a PR has been opened to fix this: https://github.com/exercism/configlet/pull/115. So hopefully it should be fixed soon 🙂

[sjwarner-bp]

https://github.com/exercism/configlet/pull/115 has been merged :tada:

That closes this issue :slightly_smiling_face: