Please conduct a comprehensive code quality review based on the criteria below. Present the findings in a new Markdown file, using clear observations and actionable recommendations under each category:

1. Method Naming
   Are method names descriptive, semantically accurate, and clearly aligned with their intended functionality?

2. Class Design
   Do any classes violate the Single Responsibility Principle or exhibit characteristics of a God Class?

3. Code Reusability
   Is there any duplicated logic that could be refactored into reusable utility methods to improve maintainability?

4. Error-Prone Logic
   Are there potential risks such as NullPointerExceptions, unhandled edge cases, or flawed control flow?

5. Code Style Compliance
   Does the code follow established style guidelines (e.g., naming conventions, indentation, comment clarity)?

6. Exception Handling
   Are all exceptions and error scenarios properly handled to prevent runtime failures?

7. Code Smells
   Are there any noticeable code smells, such as data clumps, feature envy, or excessive coupling?

8. Test Coverage
   Are unit tests present and sufficient? Are there any missing test cases or untested edge scenarios?

Please format the output using bullet points under each section, highlighting specific issues and providing improvement suggestions where applicable.