While debugging a test, I noticed this in the test's console output:

ERROR: WFLYCTL0013: Operation ("some_operation_name") failed - address: ([("subsystem" => "jgroups")]) - failure description: "WFLYCTL0216: Management resource '[(\"subsystem\" => \"jgroups\")]' not found"
Sep 16, 2014 9:29:35 AM org.jboss.as.controller.AbstractOperationContext executeStep

That "some_operation_name" visible to users isn't so good.

A simple fix is to use a more meaningful name.