[WARNING]
[WARNING] Some problems were encountered while building the effective model for org.wildfly:wildfly-ts-integ-clustering:jar:21.0.0.Beta1-SNAPSHOT
[WARNING] 'profiles.profile[ts.clustering.layers.profile].plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.wildfly.plugins:wildfly-maven-plugin @ line 1255, column 29
[WARNING] 'profiles.profile[ts.clustering.layers.profile].plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.apache.maven.plugins:maven-antrun-plugin @ line 1283, column 29
[WARNING] 'profiles.profile[ts.clustering.layers.profile].plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.wildfly.plugins:wildfly-maven-plugin @ line 1310, column 29
[WARNING] 'profiles.profile[ts.clustering.layers.profile].plugins.plugin.(groupId:artifactId)' must be unique but found duplicate declaration of plugin org.apache.maven.plugins:maven-antrun-plugin @ line 1338, column 29
[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]

Regression probably introduced via https://github.com/wildfly/wildfly/commit/773be0569d80667471dd784936045270f1365003