Duplicate declaration of org.apache.kerby:kerb-server-api-all dependency

$ mvn clean install -DskipTests -DallTests
[INFO] Scanning for projects...
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.wildfly:wildfly-ts-integ-elytron:jar:32.0.0.Beta1-SNAPSHOT
[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: org.apache.kerby:kerb-server-api-all:jar -> duplicate declaration of version ${version.org.apache.kerby} @ line 116, column 21
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
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[INFO] Reactor Build Order:
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