Configure CodeQL to exclude test directories from security scanning

[Copilot]

Description

Configures CodeQL to exclude test directories from security analysis, focusing scanning on production code and reducing noise from test sources.

Resolves #399

Changes

Created .github/codeql-config.yml:

• Excludes test paths: **/src/test/**, **/test/**, **/*Test.java, **/*Tests.java
• Excludes build artifacts: **/target/**, **/build/**, **/.mvn/**

Updated .github/workflows/codeql.yml:

• Added paths-ignore to push/pull_request triggers to skip workflow when only tests change
• References custom config via config-file: ./.github/codeql-config.yml

Impact

• 50+ test files now excluded from CodeQL analysis
• Workflow won't trigger for test-only changes
• Two-layer exclusion: workflow-level (triggering) and analysis-level (scanning)

Checklist:

• Public methods are documented
• Public methods are tested
• New and existing tests pass when run locally
• There are no new warnings or errors

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[Chore]: Configure CodeQL to ignore test files and directories</issue_title>
<issue_description>### What

Update the CodeQL workflow in .github/workflows/codeql.yml to ignore test directories (such as src/test/java/). Add paths-ignore filters to the workflow trigger and/or use a custom CodeQL config file to exclude test sources from analysis.

Why

This chore is necessary to reduce analysis noise, focus security efforts on production code, and avoid reporting issues in test sources that do not impact application vulnerability.

Notes

Refer to the CodeQL documentation for excluding directories: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#excluding-directories-from-code-scanning
Also see https://github.com/github/codeql-action
Add documentation or comments in the workflow to clarify the exclusions.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [Chore]: Configure CodeQL to ignore test files and directories #402

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Copilot]

Pull Request Overview

This PR configures CodeQL to exclude test directories from security scanning, focusing analysis on production code and reducing noise from test sources. It implements a two-layer exclusion strategy using both workflow triggers and analysis-level configuration.

• Created .github/codeql-config.yml with path exclusions for test files and build artifacts
• Updated .github/workflows/codeql.yml to use the custom config and skip workflow triggers for test-only changes

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
.github/codeql-config.yml	Defines CodeQL configuration to exclude test directories, test files, and build artifacts from security scanning
.github/workflows/codeql.yml	Updated workflow to reference custom config file and added paths-ignore filters to prevent triggering on test-only changes

[Copilot]

YAML syntax error: Lines 19-21 are incorrectly indented under the comment on line 18. These lines should be at the same indentation level as line 13 (under paths-ignore:), not as separate items.

Suggested change

	- "**/target/**"
	- "**/build/**"
	- "**/.mvn/**"
	- "**/target/**"
	- "**/build/**"
	- "**/.mvn/**"