During the build of the 'wildfly-preview' feature pack or the use of it in provisioning, the Galleon WildFly plugin is still transforming a number of jackson-jaxrs-json-provider related artifacts. The task here is to prevent this from occurring.

This is a bit of an unusual case as we've already moved to their 'jackson' classifier artifacts. But the Galleon WildFly plugin is still detecting a need to transform.

In the case of jackson-jaxrs-json-provider-2.12.3-jakarta.jar, the verbose logging from the transformer reveals the issue is in module-info.class:

[INFO] Start processing [ META-INF/versions/11/module-info.class ] using [ CLASS ]
[INFO] UTF8: javax.ws.rs -> jakarta.ws.rs (constant)
[INFO] Class size: META-INF/versions/11/module-info.class: 736 -> 755
[INFO] Stop processing [ META-INF/versions/11/module-info.class ] using [ CLASS ]: Content changes

Artifacts currently being transformed are:

[INFO] EE9: transformed jackson-jaxrs-base-2.12.3-jakarta.jar
[INFO] EE9: transformed jackson-jaxrs-json-provider-2.12.3-jakarta.jar
[INFO] EE9: transformed jackson-module-jaxb-annotations-2.12.3-jakarta.jar

My guess is they all have the same issue.

Options here are to get this corrected in jackson (if not done already) and move to to that version, or decide we don't care about module-info.class (we don't) and add these artifacts to the list of those excluded from transformation.

See also https://github.com/wildfly/wildfly/pull/14642#discussion_r724993376