Adding incorrect JGroups protocol should provide better error description than CNFE

[standalone@localhost:9990 / #] list-batch
#1 /subsystem=jgroups/stack=test:add()
#2 /subsystem=jgroups/stack=test/transport=TRANSPORT:add(type="udp",socket-binding=jgroups-udp)
#3 /subsystem=jgroups/stack=test:add-protocol(type=FD_SOCK,socket-binding=jgroups-udp-fd)
[standalone@localhost:9990 / #] run-batch 
The batch failed with the following error (you are remaining in the batch editing mode to have a chance to correct the error): {"WFLYCTL0062: Composite operation failed and was rolled back. Steps that failed:" => {"Operation step-1" => "WFLYCTL0158: Operation handler failed: java.lang.ClassNotFoundException: org.jgroups.protocols.udp from [Module \"org.jboss.as.clustering.jgroups:main\" from local module loader @4d9f6ce5 (finder: local module finder @1da65633 (roots: /home/rhusar/as/build/target/wildfly-9.0.0.Alpha1-SNAPSHOT/modules,/home/rhusar/as/build/target/wildfly-9.0.0.Alpha1-SNAPSHOT/modules/system/layers/base))]"}}
[standalone@localhost:9990 / #]