small clean-up, fixing warnings

[ramonvermeulen]

• fixed some small warnings

[github-actions]

Qodana Community for JVM

3 new problems were found

Inspection name	Severity	Problems
Unused symbol	🔶 Warning	2
Incorrect string capitalization	🔶 Warning	1

💡 Qodana analysis was run in the pull request mode: only the changed files were checked

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