09:26:58,153 ERROR [org.jboss.as.jaxr.service.JAXRBootstrapService] Cannot unbind JAXR ConnectionFactory: java.lang.NullPointerException
at org.jboss.as.jaxr.service.JAXRBootstrapService.unBindJAXRConnectionFactory(JAXRBootstrapService.java:248) [jboss-as-jaxr-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
at org.jboss.as.jaxr.service.JAXRBootstrapService.stop(JAXRBootstrapService.java:131) [jboss-as-jaxr-7.1.0.Alpha2-SNAPSHOT.jar:7.1.0.Alpha2-SNAPSHOT]
at org.jboss.msc.service.ServiceControllerImpl$StopTask.stopService(ServiceControllerImpl.java:1909) [jboss-msc-1.0.1.GA.jar:1.0.1.GA]
at org.jboss.msc.service.ServiceControllerImpl$StopTask.run(ServiceControllerImpl.java:1872) [jboss-msc-1.0.1.GA.jar:1.0.1.GA]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_26]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_26]
at java.lang.Thread.run(Thread.java:680) [:1.6.0_26]

This occurs because the service is managing dependencies manually, instead of allowing MSC to do it. Instead of adding the service in start and removing in stop, it looks like the binding service should be created at the same time with a dependency on the JAXRBootstrapService to prevent it starting to soon.