[dotnet] Annotate nullability on command repository

[RenderMichael]

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Description

Annotates nullability on the CommandInfoRepository class, as well as its sole implementation

Motivation and Context

Contributes to #14640

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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PR Type

enhancement

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Description

• Enabled nullable reference types in the CommandInfoRepository and W3CWireProtocolCommandInfoRepository classes.
• Annotated methods with nullability information to improve code safety and clarity.
• Enhanced method documentation to include exceptions and return value details.
• Refactored dictionary access in GetCommandInfo method to use TryGetValue.
• Simplified property getters in W3CWireProtocolCommandInfoRepository using expression-bodied members.

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Changes walkthrough 📝

Relevant files

Enhancement

CommandInfoRepository.cs Annotate nullability and improve method documentation        dotnet/src/webdriver/CommandInfoRepository.cs Enabled nullable reference types. Added nullability annotations to methods. Improved exception documentation for methods. Refactored method to use TryGetValue for dictionary access. +15/-7    W3CWireProtocolCommandInfoRepository.cs Enable nullability and simplify property getters                  dotnet/src/webdriver/Remote/W3CWireProtocolCommandInfoRepository.cs Enabled nullable reference types. Simplified property getters using expression-bodied members. +4/-8

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[qodo-code-review]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Null Check The IsCommandNameDefined method should validate that commandName is not null before accessing the dictionary, since it has a documented ArgumentNullException Possible Bug The FindCommandName method compares CommandInfo objects using == operator which may not work as expected for reference equality. Consider implementing proper equality comparison

[qodo-code-review]

PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Score
Possible issue	Add parameter validation to prevent null reference exceptions Add null check for commandInfo parameter in FindCommandName method to avoid potential NullReferenceException when comparing values. dotnet/src/webdriver/CommandInfoRepository.cs [72-76] public string? FindCommandName(CommandInfo commandInfo) { + if (commandInfo == null) + throw new ArgumentNullException(nameof(commandInfo)); + foreach (KeyValuePair<string, CommandInfo> pair in this.commandDictionary) { if (pair.Value == commandInfo) Apply this suggestion Suggestion importance[1-10]: 8 Why: The suggestion addresses a critical null reference safety issue by adding parameter validation, which is especially important given the PR's focus on enabling nullable reference types and improving exception handling.	8
	Add consistent null parameter validation across public methods Add null check for commandName parameter in GetCommandInfo method to maintain consistency with other methods that throw ArgumentNullException for null command names. dotnet/src/webdriver/CommandInfoRepository.cs [90-95] public T? GetCommandInfo<T>(string commandName) where T : CommandInfo { + if (commandName == null) + throw new ArgumentNullException(nameof(commandName)); + if (this.commandDictionary.TryGetValue(commandName, out CommandInfo? info)) { return info as T; } Apply this suggestion Suggestion importance[1-10]: 8 Why: The suggestion maintains consistency with other methods in the codebase that throw ArgumentNullException for null parameters, aligning with the PR's goal of improving null safety and exception documentation.	8

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[RenderMichael]

Format issues seems to be coming from rust/src/lock.rs, and test failure is in //java/test/org/openqa/selenium:ClickTest-firefox-beta. I think this PR has no issues.

[nvborisenko]

Thanks @RenderMichael !