[java] Add JSpecify annotations to Color class (Issue #14291)

[spencerarq]

User description

🔗 Related Issues

Fixes: #14291
(This PR addresses the ongoing effort to adopt JSpecify annotations for null-safety.)

💥 What does this PR do?

This PR adds JSpecify annotations to the org.openqa.selenium.support.Color class, as part of the effort to improve null-safety across the codebase.

🔧 Implementation Notes

1. Annotation: The Color class was annotated with @NullMarked (defaulting parameters and return types to non-null).
2. Build Fix: The infrastructure required an update. I added org.jspecify:jspecify dependency to the support-lib target in BUILD.bazel to resolve the indirect dependency error from Bazel's strict policy.
3. Motivation: This provides better static analysis support and improves Kotlin interoperability by making nullability contracts explicit for developers using the Java bindings.

💡 Additional Considerations

Verification: All related tests were executed successfully using Bazel:
bazel test //java/test/org/openqa/selenium/support:ColorTest
The build completed successfully and 1 test passed.

🔄 Types of changes

• Cleanup (formatting, renaming)
• New feature (non-breaking change which adds functionality and tests!)

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PR Type

Enhancement, Documentation

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Description

• Add JSpecify @NullMarked and @Nullable annotations to Color class

• Improve null-safety and Kotlin interoperability with explicit nullability contracts

• Add org.jspecify:jspecify dependency to support-lib BUILD target

• Mark Converter.getColor() method return type as nullable

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Diagram Walkthrough

flowchart LR
  A["Color class"] -->|"Add @NullMarked"| B["Class-level annotation"]
  A -->|"Add @Nullable"| C["getColor method"]
  D["BUILD.bazel"] -->|"Add dependency"| E["org.jspecify:jspecify"]
  B --> F["Explicit nullability contracts"]
  C --> F

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File Walkthrough

	Relevant files
Enhancement	Color.java Add JSpecify null-safety annotations to Color class            java/src/org/openqa/selenium/support/Color.java Added @NullMarked class-level annotation to default parameters and return types to non-null Added @Nullable annotation to Converter.getColor() method return type Imported JSpecify annotation classes (NullMarked and Nullable) +4/-1
Configuration changes	BUILD.bazel Add JSpecify dependency to BUILD configuration                      java/src/org/openqa/selenium/support/BUILD.bazel Added org.jspecify:jspecify artifact dependency to support-lib java_export target Resolves indirect dependency error from Bazel's strict dependency policy +1/-0

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[CLAassistant]

All committers have signed the CLA.

[qodo-merge-pro]

PR Compliance Guide 🔍

Below is a summary of compliance checks for this PR:

Security Compliance
🟢	No security concerns identified No security vulnerabilities detected by AI analysis. Human verification advised for critical code.
Ticket Compliance
⚪	🎫 No ticket provided Create ticket/issue
Codebase Duplication Compliance
⚪	Codebase context is not defined Follow the guide to enable codebase context checks.
Custom Compliance
🟢	Generic: Meaningful Naming and Self-Documenting Code Objective: Ensure all identifiers clearly express their purpose and intent, making code self-documenting Status: Passed Learn more about managing compliance generic rules or creating your own custom rules
	Generic: Secure Error Handling Objective: To prevent the leakage of sensitive system information through error messages while providing sufficient detail for internal debugging. Status: Passed Learn more about managing compliance generic rules or creating your own custom rules
	Generic: Secure Logging Practices Objective: To ensure logs are useful for debugging and auditing without exposing sensitive information like PII, PHI, or cardholder data. Status: Passed Learn more about managing compliance generic rules or creating your own custom rules
⚪	Generic: Comprehensive Audit Trails Objective: To create a detailed and reliable record of critical system actions for security analysis and compliance. Status: No audit logs: The added annotations and minor signature change introduce no logging for critical actions, but the Color utility likely does not perform auditable actions; confirm no sensitive operations occur here. Referred Code @NullMarked public class Color { private final int red; private final int green; private final int blue; private double alpha; private static final Converter[] CONVERTERS = { Learn more about managing compliance generic rules or creating your own custom rules
	Generic: Robust Error Handling and Edge Case Management Objective: Ensure comprehensive error handling that provides meaningful context and graceful degradation Status: Nullability change: The method return type was changed to @nullable but the diff does not show added null-handling at call sites or explicit edge-case documentation for null returns. Referred Code public @Nullable Color getColor(String value) { Matcher matcher = getPattern().matcher(value); if (matcher.find()) { double a = 1.0; if (matcher.groupCount() == 4) { a = Double.parseDouble(matcher.group(4)); Learn more about managing compliance generic rules or creating your own custom rules
	Generic: Security-First Input Validation and Data Handling Objective: Ensure all data inputs are validated, sanitized, and handled securely to prevent vulnerabilities Status: Input parsing risk: The converter parses strings to numbers without visible validation and now may return null; while unchanged parsing remains, the nullable contract could require additional input validation by callers not shown in this diff. Referred Code Matcher matcher = getPattern().matcher(value); if (matcher.find()) { double a = 1.0; if (matcher.groupCount() == 4) { a = Double.parseDouble(matcher.group(4)); Learn more about managing compliance generic rules or creating your own custom rules

Compliance status legend

🟢 - Fully Compliant
🟡 - Partial Compliant
🔴 - Not Compliant
⚪ - Requires Further Human Verification
🏷️ - Compliance label

[selenium-ci]

Thank you, @spencerarq for this code suggestion.

The support packages contain example code that many users find helpful, but they do not necessarily represent
the best practices for using Selenium, and the Selenium team is not currently merging changes to them.

After reviewing the change, unless it is a critical fix or a feature that is needed for Selenium
to work, we will likely close the PR.

We actively encourage people to add the wrapper and helper code that makes sense for them to their own frameworks.
If you have any questions, please contact us

[qodo-merge-pro]

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