NIFI-12123: Added additional @UseCase and @MultiProcessorUseCase anno…

[markap14]

…tations as well as some trivial cleanup that was flagged by IntelliJ such as making inner class static, updating some deprecated references, etc.

Summary

NIFI-00000

Tracking

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Issue Tracking

• Apache NiFi Jira issue created

Pull Request Tracking

• Pull Request title starts with Apache NiFi Jira issue number, such as NIFI-00000
• Pull Request commit message starts with Apache NiFi Jira issue number, as such NIFI-00000

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Build

• Build completed using mvn clean install -P contrib-check
  • JDK 21

Licensing

• New dependencies are compatible with the Apache License 2.0 according to the License Policy
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Documentation

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[joewitt]

Changes look good. Letting local build wrap up and assuming that plus github checks run well i'll merge soon.