Replace lambda expressions with method references

[Copilot]

Description

Resolves #[issue number]

Replaced 45 lambda expressions with equivalent method references across 16 files to improve code readability and align with Java best practices.

Changes

Test files (10 files, 36 occurrences)

• () -> builder.build() → builder::build in assertDoesNotThrow and assertThrows calls

Sample applications (6 files, 9 occurrences)

• forEach(x -> System.out.println(x)) → forEach(System.out::println)

Example

Before:

assertDoesNotThrow(() -> builder.build());
response.getBody().getStatements().forEach(s -> System.out.println(s));

After:

assertDoesNotThrow(builder::build);
response.getBody().getStatements().forEach(System.out::println);

Checklist:

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

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• checkstyle.org
  • Triggering command: /opt/hostedtoolcache/CodeQL/2.23.3/x64/codeql/tools/linux64/java/bin/java -jar /opt/hostedtoolcache/CodeQL/2.23.3/x64/codeql/xml/tools/xml-extractor.jar --fileList=/home/REDACTED/work/xapi-java/.codeql-scratch/dbs/java/working/files-to-index16777111346416252171.list --sourceArchiveDir=/home/REDACTED/work/xapi-java/.codeql-scratch/dbs/java/src --outputDir=/home/REDACTED/work/xapi-java/.codeql-scratch/dbs/java/trap/java (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[Enhancement]: Replace lambda expressions with method references where applicable</issue_title>
<issue_description>### What

Replace lambda expressions in the project with equivalent method references where appropriate. For example, convert usages such as () -> builder.build() to builder::build and similar patterns to improve code readability and alignment with Java best practices.

Why

Using method references instead of lambdas can make the codebase clearer, more concise, and easier to understand. It also aligns with Java best practices and may enhance code maintainability.

Notes

No response</issue_description>

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

• Fixes [Enhancement]: Replace lambda expressions with method references where applicable #303

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.

[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