Upgrade to Spring Framework 7.0.5 breaks certification with many application servers

[vikas25538]

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Enhancement Request

Reference: https://github.com/spring-projects/spring-framework/wiki/Spring-Framework-7.0-Release-Notes

Spring Framework 7.0 maintains a JDK 17 baseline while recommending JDK 25 as the latest LTS. It also adopts Jakarta EE 11, along with support for Kotlin 2.2 and GraalVM 25. As part of this upgrade, the minimum requirement has been raised to Servlet 6.1 (e.g., Tomcat 11.0, Jetty 12.1).

Upgrading to Spring Framework version 7.0.5 introduces a potential certification risk for the following application servers, as they do not currently support Servlet 6.1 (Jakarta EE 11 specification):

JBoss 8.1 (8.1 Update 3) / 8.0 (8.0.11.0)
WebLogic 15c (15.1.1) — EOS: 2030
IBM Liberty 26.0.0.1
WildFly 38.0.1, 39.0.0

It is critical to ensure that backward compatibility is preserved during the Spring upgrade. Please provide a fix for this.

[bclozel]

@vikas25538 unfortunately this type of feedback comes too late. We publicly shared our plans in October 2024 and got positive feedback from the community. At this point Jakarta EE 11 has been out for a while now, maybe reach out to your application server vendor and ask them for a timeline? Spring Framework 6.2 is commercially supported until 2032 so there should be plenty of time to upgrade. Cheers!