SWI-3723 [Snyk] Security upgrade com.squareup.retrofit2:retrofit from 2.11.0 to 3.0.0

[bwappsec]

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

Snyk changed the following file(s):

• samples/client/petstore/java/retrofit2rx3/pom.xml

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This major upgrade to Retrofit 3.0 introduces significant changes, establishing it as a Kotlin-first library with native support for coroutines.

Breaking Changes:

• Native Coroutines: API interfaces using coroutines must be refactored. Methods returning Call<T> should be converted to suspend functions that return the body type directly. [2, 10]
• Error Handling: suspend functions now throw HttpException directly for server errors, requiring updates to error handling logic to use try-catch blocks. [1, 2]
• Runtime Requirement: The library now requires Java 8+ or Android API 21+. [4]

While the library maintains binary compatibility with version 2.x, adopting these new idiomatic patterns requires developer action. [5, 6]

Source: Release notes

Recommendation: Plan for refactoring of Kotlin-based service interfaces to adopt suspend functions and update associated error handling.

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

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Vulnerabilities that will be fixed with an upgrade:

	Issue	Score	Upgrade
	Improper Certificate Validation SNYK-JAVA-COMSQUAREUPOKHTTP3-13961111	125	com.squareup.retrofit2:retrofit: 2.11.0 -> 3.0.0 Major version upgrade No Path Found No Known Exploit

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[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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