[dotnet] Annotate nullability on Domains

[RenderMichael]

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Annotate nullability on Domains

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.
• [x ] All new and existing tests passed.

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PR Type

Enhancement, Bug fix

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Description

• Annotated nullability for multiple DevTools domain classes.

• Added ArgumentNullException checks for constructor parameters.

• Corrected typos in XML documentation comments.

• Enabled nullable reference types in relevant files.

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Changes walkthrough 📝

	Relevant files
Documentation	DevToolsDomains.cs Fix typos and enhance XML documentation                                    dotnet/src/webdriver/DevTools/DevToolsDomains.cs Corrected typos in XML documentation comments. Improved clarity of parameter descriptions. +2/-2
Enhancement	V130Domains.cs Add nullability annotations and constructor validation      dotnet/src/webdriver/DevTools/v130/V130Domains.cs Enabled nullable reference types. Added ArgumentNullException for null session parameter. Made domains field readonly. +7/-2      V131Domains.cs Add nullability annotations and constructor validation      dotnet/src/webdriver/DevTools/v131/V131Domains.cs Enabled nullable reference types. Added ArgumentNullException for null session parameter. Made domains field readonly. +7/-2      V132Domains.cs Add nullability annotations and constructor validation      dotnet/src/webdriver/DevTools/v132/V132Domains.cs Enabled nullable reference types. Added ArgumentNullException for null session parameter. Made domains field readonly. +7/-2      V85Domains.cs Add nullability annotations and constructor validation      dotnet/src/webdriver/DevTools/v85/V85Domains.cs Enabled nullable reference types. Added ArgumentNullException for null session parameter. Made domains field readonly. +7/-2

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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 Documentation Mismatch The class documentation states "version 86" but the class name and namespace indicate version 85. This inconsistency should be corrected. /// Class containing the domain implementation for version 86 of the DevTools Protocol. /// </summary>

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PR Code Suggestions ✨

Explore these optional code suggestions:

Category	Suggestion	Impact
General	Fix incorrect version in documentation The class summary comment incorrectly states "version 86" while the class name and namespace indicate version 85. Update the comment to match the actual version. dotnet/src/webdriver/DevTools/v85/V85Domains.cs [26-29] /// <summary> -/// Class containing the domain implementation for version 86 of the DevTools Protocol. +/// Class containing the domain implementation for version 85 of the DevTools Protocol. /// </summary> public class V85Domains : DevToolsDomains Apply this suggestion Suggestion importance[1-10]: 7 __ Why: The suggestion identifies a clear documentation inconsistency where the class summary mentions version 86 while the class name and namespace are for version 85. This mismatch could confuse developers and should be corrected for accuracy.	Medium
Learned best practice	Add null validation check at the start of method to prevent potential NullReferenceException The InitializeDomains method should validate that the session parameter is not null at the start of the method, since it's a required parameter. Add an ArgumentNullException check similar to what was added in the V130/V131/V132/V85 domain classes. dotnet/src/webdriver/DevTools/DevToolsDomains.cs [95-98] public static DevToolsDomains InitializeDomains(int protocolVersion, DevToolsSession session) { + ArgumentNullException.ThrowIfNull(session, nameof(session)); return InitializeDomains(protocolVersion, session, DefaultVersionRange); } [To ensure code accuracy, apply this suggestion manually]	Low

[RenderMichael]

Failures are unrelated to changes

//java/test/org/openqa/selenium/mobile:NetworkConnectionTest
//java/test/org/openqa/selenium/remote:RemoteWebDriverScreenshotTest
//java/test/org/openqa/selenium/remote:RemoteWebDriverScreenshotTest-firefox-beta
//rb/spec/integration/selenium/webdriver:network-firefox-beta-bidi
//rb/spec/integration/selenium/webdriver:network-firefox-bidi