Touching jboss-service.xml in deploy/jbossweb.sar causes NPEs redeploying the WARs:

15:19:50,881 ERROR [AbstractKernelController] Error installing to Start: name=jboss.web.deployment:war=/jbossws state=Create mode=Manual requiredState=Installed
java.lang.NullPointerException
at org.jboss.web.deployers.WebModule.startModule(WebModule.java:111)
at org.jboss.web.deployers.WebModule.start(WebModule.java:90)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:616)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:206)
at $Proxy35.start(Unknown Source)
at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42)
at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37)
at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62)
at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71)
at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51)
at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at org.jboss.system.microcontainer.ServiceControllerContext.install(ServiceControllerContext.java:271)
at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1392)
at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:784)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:912)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:834)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:672)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:455)
at org.jboss.system.ServiceController.doChange(ServiceController.java:664)
at org.jboss.system.ServiceController.start(ServiceController.java:436)
at org.jboss.system.deployers.ServiceDeployer.start(ServiceDeployer.java:150)
at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:108)
at org.jboss.system.deployers.ServiceDeployer.deploy(ServiceDeployer.java:46)
at org.jboss.deployers.spi.deployer.helpers.AbstractSimpleRealDeployer.internalDeploy(AbstractSimpleRealDeployer.java:62)
at org.jboss.deployers.spi.deployer.helpers.AbstractRealDeployer.deploy(AbstractRealDeployer.java:50)
at org.jboss.deployers.plugins.deployers.DeployerWrapper.deploy(DeployerWrapper.java:174)
at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:970)
at org.jboss.deployers.plugins.deployers.DeployersImpl.doInstallParentFirst(DeployersImpl.java:991)
at org.jboss.deployers.plugins.deployers.DeployersImpl.install(DeployersImpl.java:911)
at org.jboss.dependency.plugins.AbstractControllerContext.install(AbstractControllerContext.java:348)
at org.jboss.dependency.plugins.AbstractController.install(AbstractController.java:1392)
at org.jboss.dependency.plugins.AbstractController.incrementState(AbstractController.java:784)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:912)
at org.jboss.dependency.plugins.AbstractController.resolveContexts(AbstractController.java:834)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:672)
at org.jboss.dependency.plugins.AbstractController.change(AbstractController.java:455)
at org.jboss.deployers.plugins.deployers.DeployersImpl.process(DeployersImpl.java:594)
at org.jboss.deployers.plugins.main.MainDeployerImpl.process(MainDeployerImpl.java:541)
at org.jboss.system.server.profileservice.hotdeploy.HDScanner.scan(HDScanner.java:290)
at org.jboss.system.server.profileservice.hotdeploy.HDScanner.run(HDScanner.java:221)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRunAndReset(FutureTask.java:351)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:178)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:165)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:267)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)

Redployment of individual WARs works.