The following artifacts have been added to the EJB3 Plugin Installer for inclusion in jbossall-client.jar, but these should be placed in there by the AS build:

$JBOSS_HOME/client
jboss-metadata.jar
trove.jar
javassist.jar
log4j.jar

$JBOSS_HOME/lib:
jboss-container.jar

..Once the AS build properly builds jbossall-client.jar (and separates out into x-client.jar appropriately), remove the hack from the EJB3 Plugin installer (this is not specific to EJB3 and belongs resolved at a lower level of the build).