https://ci.wildfly.org/viewLog.html?buildId=124494&buildTypeId=WF_PullRequest_LinuxJdk10#testNameId8859243729253738053

The requisite java.xml.bind module was deprecated in Java 9 and removed from Java 11, as it was relocated to JEE.

Therefore the org.wildfly.clustering.web.spi module needs an additional provided dependency on the javax.xml.bind.api EE module.
However, it seems overkill to import a whole module just to perform hex encoding/decoding, as we can easily do this manually.