SWI-3723 [Snyk] Security upgrade io.vertx:vertx-core from 3.9.12 to 4.5.23

[bwappsec]

Snyk has created this PR to fix 1 vulnerabilities in the maven dependencies of this project.

Snyk changed the following file(s):

• samples/server/petstore/kotlin-vertx-modelMutable/pom.xml

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score	Upgrade
	CRLF Injection SNYK-JAVA-IONETTY-14423947	69	io.vertx:vertx-core: 3.9.12 -> 4.5.23 Major version upgrade No Path Found No Known Exploit

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[bwappsec]

The upgrade from Vert.x 3.x to 4.x is a major version change with significant breaking changes that require code modifications.

Key Breaking Changes:

• API Removals: APIs that were deprecated in Vert.x 3 have been removed. For example, the EventBus.send() method for request-response has been removed and replaced by EventBus.request(). [1]
• Asynchronous Programming: Vert.x 4 adopts Futures as the primary mechanism for asynchronous operations, moving away from the traditional callback-style. While callbacks are still supported to ease migration, many APIs have changed. [1, 4]
• WriteStream API: The write() and end() methods on WriteStream are no longer fluent and do not return the stream instance, which will break any chained calls. [1, 5]

Source: Vert.x 3 to 4 Migration Guide
Recommendation: This is a major migration that requires careful code review and refactoring. Developers must follow the official migration guide to update asynchronous handling, replace removed APIs, and adapt to other breaking changes.

Notice 🤖: This content was augmented using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.

[bwappsec]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scanner	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues
✅	Licenses	0	0	0	0	0 issues
✅	Code Security	0	0	0	0	0 issues

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