Please check the usage of -Djboss.dist parameter provided from the command line. It seems the testsuite does not take it and still uses jboss.dist as defined in testsuite/pom.xml#<properties>. Looks like maven properties are a bit different than system properties, read for example the following:

http://maven.40175.n5.nabble.com/Overriding-properties-from-command-line-arguments-td3345432.html

Thanks.