I'm attempting to upgrade from an older version of resteasy-jaxb-provider (3.0.6) to 4.0.0.Final due to some dependency conflicts on a larger project that got resteasy-jackson2-provider, several com.fasterxml.jackson.core dependency version bumps and jackson-databind version bumps for unrelated reasons.

My question is about the maven packaging/pom configuration. I am using a the maven-ant-tasks plugin from Apache (but I see the same issue/warning messages resolving dependencies from maven central through the mvn command line directly). The problem with the ant task may be three-fold: The ant-maven task errors out when it can't read the poms (this is probably mostly a me/us problem with our tooling). Secondly, it looks like some of the pom configuration in the resteasy/jboss projects is possibly too complicated for it or possibly even misconfigured (the errors I see in both maven and ant tasks are related to not finding the parent-pom for the project). Finally, the third issue I noticed may be a regression in maven 3.6.1 that causes it not to follow redirects.

That's a lot to parse, but let me break it down into pieces to see if somebody may have an idea for a better way to resolve this issue.

1.) When upgrading to 4.0.0.Final (after fixing two or three differences due to functionality changes, getting everything compiling), I am getting the following errors when pulling it from the repo:

2.) When I inspect the contents of the repo it's crashing on, jaxb-bom-ext, this is the content of ~/.m2/repository/com/sun/xml/bind/jaxb-bom-ext/2.3.1/jaxb-bom-ext-2.3.1.pom:

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