When building Branch_5_x & trunk without using external repos, I'm getting:

[java] Downloading: http://repository.jboss.org/maven2/org/codehaus/plexus/plexus-utils/1.5.6/plexus-utils-1.5.6.jar
[java] [INFO] ------------------------------------------------------------------------
[java] [ERROR] BUILD ERROR
[java] [INFO] ------------------------------------------------------------------------
[java] [INFO] Failed to resolve artifact.
[java]
[java] Missing:
[java] ----------
[java] 1) org.codehaus.plexus:plexus-utils:jar:1.5.6
[java]
[java] Try downloading the file manually from the project website.
[java]
[java] Then, install it using the command:
[java] mvn install:install-file -DgroupId=org.codehaus.plexus -DartifactId=plexus-utils -Dversion=1.5.6 -Dpackaging=jar -Dfile=/path/to/file
[java]
[java] Alternatively, if you host your own repository you can deploy the file there:
[java] mvn deploy:deploy-file -DgroupId=org.codehaus.plexus -DartifactId=plexus-utils -Dversion=1.5.6 -Dpackaging=jar -Dfile=/path/to/file -Durl=[url] -DrepositoryId=[id]
[java]
[java] Path to dependency:
[java] 1) org.apache.maven.plugins:maven-antrun-plugin:maven-plugin:1.3
[java] 2) org.codehaus.plexus:plexus-utils:jar:1.5.6
[java]
[java] ----------
[java] 1 required artifact is missing.
[java]
[java] for artifact:
[java] org.apache.maven.plugins:maven-antrun-plugin:maven-plugin:1.3
[java]
[java] from the specified remote repositories:
[java] jboss-repository-mirror (http://repository.jboss.org/maven2)
[java]
[java]