After downloading the most recent codebase from git for jbossAS 7.2.0.SNAPSHOT, I recieved the following error:

[INFO] ------------------------------------------------------------------------
[INFO] Building JBoss Application Server: Arquillian TestNG Integration 7.2.0.Alpha1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
Downloading: http://repository.jboss.org/nexus/content/groups/public/org/jboss/as/jboss-as-spec-api/7.2.0.Alpha1-SNAPSHOT/maven-metadata.xml
Downloading: http://repository.jboss.org/nexus/content/groups/public/org/jboss/as/jboss-as-spec-api/7.2.0.Alpha1-SNAPSHOT/jboss-as-spec-api-7.2.0.Alpha1-SNAPSHOT.pom
[WARNING] The POM for org.jboss.as:jboss-as-spec-api:pom:7.2.0.Alpha1-SNAPSHOT is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] JBoss Application Server: Arquillian .............. SUCCESS [3.091s]
[INFO] JBoss Application Server: Arquillian TestEnricher MSC SUCCESS [7.331s]
[INFO] JBoss Application Server: Arquillian Common ....... SUCCESS [7.461s]
[INFO] JBoss Application Server: Arquillian Embedded Container SUCCESS [18.654s]
[INFO] JBoss Application Server: Arquillian Protocol JMX . SUCCESS [3.766s]
[INFO] JBoss Application Server: Arquillian Managed Container SUCCESS [19.634s]
[INFO] JBoss Application Server: Arquillian Remote Container SUCCESS [2.147s]
[INFO] JBoss Application Server: Arquillian TestNG Integration FAILURE [3.535s]
[INFO] JBoss Application Server: Arquillian Common Domain SKIPPED
[INFO] JBoss Application Server: Arquillian Remote Domain Container SKIPPED
[INFO] JBoss Application Server: Arquillian Managed Domain Container SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1:08.150s
[INFO] Finished at: Sat Dec 22 23:43:21 PST 2012
[INFO] Final Memory: 51M/317M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project jboss-as-arquillian-testng-integration: Could not resolve dependencies for project org.jboss.as:jboss-as-arquillian-testng-integration:jar:7.2.0.Alpha1-SNAPSHOT

Indeed after looking at the jboss nexus repository I came across this link:

https://repository.jboss.org/nexus/content/groups/public/org/jboss/as/jboss-as-spec-api/

There do not appear to be any entries for 7.2.0.Alpha1-SNAPSHOT.