Intellij git dir corrupted: NoSuchElementException in JGitFileSystem should have a better error message

ERROR [org.jboss.msc.service.fail] MSC000001: Failed to start service jboss.deployment.unit."ROOT.war".WeldStartService: org.jboss.msc.service.StartException in service jboss.deployment.unit."ROOT.war".WeldStartService: Failed to start service
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_71]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_71]
	at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_71]
Caused by: org.jboss.weld.exceptions.DeploymentException: Exception List with 1 exceptions:
Exception 0 :
org.jboss.weld.exceptions.WeldException: WELD-000049: Unable to invoke public void org.kie.uberfire.social.activities.server.SocialUserPersistenceProducer.setup() on org.kie.uberfire.social.activities.server.SocialUserPersistenceProducer@1fb6f5d1
	at org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.invokeMethods(DefaultLifecycleCallbackInvoker.java:91)
	at org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.postConstruct(DefaultLifecycleCallbackInvoker.java:72)
	at org.jboss.weld.injection.producer.BasicInjectionTarget.postConstruct(BasicInjectionTarget.java:95)
	at org.jboss.weld.injection.producer.BeanInjectionTarget.postConstruct(BeanInjectionTarget.java:63)
	at org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:162)
	at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:96)
	at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:98)
	at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:78)
	at org.kie.uberfire.social.activities.server.SocialUserPersistenceProducer$Proxy$_$$_WeldClientProxy.toString(Unknown Source)
	at org.uberfire.backend.server.cdi.SystemConfigProducer.runPostConstruct(SystemConfigProducer.java:162)
	at org.uberfire.backend.server.cdi.SystemConfigProducer.afterDeploymentValidation(SystemConfigProducer.java:143)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:93)
	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:266)
	at org.jboss.weld.event.ExtensionObserverMethodImpl.sendEvent(ExtensionObserverMethodImpl.java:125)
	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
	at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:232)
	at org.jboss.weld.event.ObserverNotifier.notifyObserver(ObserverNotifier.java:169)
	at org.jboss.weld.event.ObserverNotifier.notifyObservers(ObserverNotifier.java:128)
	at org.jboss.weld.event.ObserverNotifier.fireEvent(ObserverNotifier.java:102)
	at org.jboss.weld.bootstrap.events.AbstractContainerEvent.fire(AbstractContainerEvent.java:63)
	at org.jboss.weld.bootstrap.events.AbstractDeploymentContainerEvent.fire(AbstractDeploymentContainerEvent.java:35)
	at org.jboss.weld.bootstrap.events.AfterDeploymentValidationImpl.fire(AfterDeploymentValidationImpl.java:28)
	at org.jboss.weld.bootstrap.WeldStartup.validateBeans(WeldStartup.java:396)
	at org.jboss.weld.bootstrap.WeldBootstrap.validateBeans(WeldBootstrap.java:85)
	at org.jboss.as.weld.WeldStartService.start(WeldStartService.java:93)
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948)
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.jboss.weld.injection.producer.DefaultLifecycleCallbackInvoker.invokeMethods(DefaultLifecycleCallbackInvoker.java:89)
	... 33 more
Caused by: java.lang.RuntimeException: Exception cleaning and unsetting batch mode on FS.
	at org.uberfire.io.impl.AbstractIOService.endBatch(AbstractIOService.java:173)
	at org.kie.uberfire.social.activities.persistence.SocialUserCachePersistence.syncSocialUsers(SocialUserCachePersistence.java:72)
	at org.kie.uberfire.social.activities.persistence.SocialUserCachePersistence.setup(SocialUserCachePersistence.java:62)
	at org.kie.uberfire.social.activities.server.SocialUserPersistenceProducer.setupSocialUserPersistenceAPI(SocialUserPersistenceProducer.java:97)
	at org.kie.uberfire.social.activities.server.SocialUserPersistenceProducer.setup(SocialUserPersistenceProducer.java:87)
	... 38 more
Caused by: java.util.NoSuchElementException
	at java.util.ArrayList$Itr.next(ArrayList.java:854)
	at org.uberfire.java.nio.fs.jgit.JGitFileSystem$1$1.next(JGitFileSystem.java:194)
	at org.uberfire.java.nio.fs.jgit.JGitFileSystem$1$1.next(JGitFileSystem.java:173)
	at org.uberfire.io.impl.AbstractIOService.unsetBatchModeOn(AbstractIOService.java:210)
	at org.uberfire.io.impl.AbstractIOService.cleanUpAndUnsetBatchModeOnFileSystems(AbstractIOService.java:185)
	at org.uberfire.io.impl.AbstractIOService.endBatch(AbstractIOService.java:171)
	... 42 more

	at org.jboss.weld.bootstrap.events.AbstractDeploymentContainerEvent.fire(AbstractDeploymentContainerEvent.java:37)
	at org.jboss.weld.bootstrap.events.AfterDeploymentValidationImpl.fire(AfterDeploymentValidationImpl.java:28)
	at org.jboss.weld.bootstrap.WeldStartup.validateBeans(WeldStartup.java:396)
	at org.jboss.weld.bootstrap.WeldBootstrap.validateBeans(WeldBootstrap.java:85)
	at org.jboss.as.weld.WeldStartService.start(WeldStartService.java:93)
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
	... 3 more

  if (...) {
     throw new IllegalStateException("The gitnio directory (" + gitnioDir + ") is being hogged by IntelliJ or something else.\n"
           + "Consider putting it in a different directory with for example \"-Dorg.uberfire.nio.git.dir=/tmp/foo\".");
  }