why scanner redeploy custer-service.xml frequently?

[tomshanghai]

Thank everyone in advance!

My situation:
I was making the jboss default supports custer, i move the below files into default:
1.all\lib\jgroups.jar,jboss-cache.jar,jbossha.jar
2.all\deploy\cluster-service.xml
3.all\deploy\deploy-hasingleton-service.xml
4.all\deploy-hasingleton\jms\*
5.all\deploy\jms\*
6.all\deploy\ejb3-*.xml

I just use HA-JMS+Loadbalanced MDBs.

My Quuestion:
Why URLDirectoryScanner redploy cluster-service.xml again and again, the MBeanException error is encountered?

[tomshanghai]

Sorry for my spelling error:
1.custer-->cluster
2.redploy-->redeploy

[tomshanghai]

log info:
DEBUG [org.jboss.deployment.scanner.URLDirectoryScanner] (ScannerThread:) Deploying Modified (or new) url: file:/C:/firmament/jboss/server/default/deploy/deploy-hasingleton-service.xml
DEBUG [org.jboss.deployment.scanner.URLDirectoryScanner] (ScannerThread:) Deploying Modified (or new) url: file:/C:/firmament/jboss/server/default/deploy/cluster-service.xml
ERROR [org.jboss.deployment.scanner.URLDirectoryScanner] (ScannerThread:) javax.management.MBeanException