The build fails when trying to build thirdparty bits using maven:
createthirdparty:
[echo] Calling mvn command located in /qa/home/mmalina/jbossqa/as5/jboss-5.0.0.GA-src/build/../tools/maven
[java] [INFO] Scanning for projects...
[java] WAGON_VERSION: 1.0-beta-2
[java] [INFO] ----------------------------------------------------------------------g JBoss Application Server Thirdparty Build
[java] [INFO] task-segment: [generate-resources]
[java] [INFO] ------------------------------------------------------------------------
[java] [INFO] ------------------------------------------------------------------------
[java] [ERROR] FATAL ERROR
[java] [INFO] ------------------------------------------------------------------------
[java] [INFO] null
[java] [INFO] ------------------------------------------------------------------------
[java] [INFO] Trace
[java] java.lang.ArrayIndexOutOfBoundsException
[java] at java.util.ArrayList.contains(Unknown Source)
[java] at org.apache.maven.project.ModelUtils.orderAfterMerge(ModelUtils.java:232)
[java] at org.apache.maven.project.ModelUtils.mergePluginLists(ModelUtils.java:197)
[java] at org.apache.maven.project.inheritance.DefaultModelInheritanceAssembler.assembleBuil
....

See more in the attached log.