NPE in Server on bad input

With this (bogus) input over the json interface, the server throws a NPE and does not return an error message to the caller

{"address":[

,

],"operation":"add","name":"newServer","auto-start":"true","group":"main-server-group"}

Stack trace is

[Host Controller] 11:55:21,170 ERROR [org.jboss.as.domain.http.api] (pool-1-thread-10) Unexpected error executing model request: java.lang.NullPointerException
[Host Controller] at org.jboss.as.domain.controller.DomainControllerImpl.execute(DomainControllerImpl.java:354)
[Host Controller] at org.jboss.as.controller.AbstractModelController.execute(AbstractModelController.java:101)
[Host Controller] at org.jboss.as.domain.controller.DomainControllerImpl.execute(DomainControllerImpl.java:219)
[Host Controller] at org.jboss.as.domain.http.server.DomainHttpServer.processRequest(DomainHttpServer.java:173)
[Host Controller] at org.jboss.as.domain.http.server.DomainHttpServer.handle(DomainHttpServer.java:104)
[Host Controller] at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:82) [:1.6.0_24]