chore: clean up code

[nyg]

Ran some OpenRewrite recipes (e.g. https://docs.openrewrite.org/recipes/java/migrate/upgradetojava17) to modernize and simplify code base.

Also removed the site folder if that's ok.

[Copilot]

Pull Request Overview

This pull request modernizes the JMXTerm codebase by applying OpenRewrite recipes to upgrade to Java 17 standards and clean up deprecated patterns. The changes focus on adopting modern Java features like enhanced switch expressions, pattern matching, try-with-resources, and updated API usage.

Key changes include:

• Modernized Java syntax using Java 17 features (pattern matching, text blocks, enhanced switch)
• Updated exception handling with multi-catch blocks and try-with-resources
• Replaced deprecated API calls with modern alternatives
• Code cleanup including removal of unnecessary casts and verbose anonymous classes

Reviewed Changes

Copilot reviewed 43 out of 49 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
Test files (multiple)	Modernized test code with updated API usage and exception handling
Command classes	Updated command implementations with Java 17 syntax and modern patterns
Utility classes	Applied modern Java practices and updated API calls
Boot classes	Simplified main class and options with modern syntax
Site files	Removed legacy site documentation files

[nyg]

@LeMyst I would discard all 5 Copilot comments. All the methods I changed were marked as deprecated in the current Apache Commons version used, and as the code builds and runs it means the new ones do exist :).

[LeMyst]

Hello @nyg
Thanks for your work, everything is OK for me