Why JBoss does not deploy applications if it is deployed or undeployed using mv command.

Issue

• Why JBoss does not deploy the application when it is added or removed inside the "standalone/deployments" directory couple of times?
• Why deployments acts differently when using operating system command "rm" and "mv" command.
• Following is the sequence which can be used to reproduce this issue:

[userone@userone standalone]$ cp TestApp.war deployments/  --> works fine and application gets deployed. .deployed marker file gets created.

[userone@userone standalone]$ rm deployments/TestApp.war --> Test app gets undeployed and the .undeployed marker file gets created.

[userone@userone standalone]$ cp TestApp.war deployments/  --> Gets redeployed and .undeployed changes to .deployed.

[userone@userone standalone]$ mv deployments/TestApp.war log/  --> moved the app from /deployments to /log folder. App gets undeployed (.undeployed created).

[userone@userone standalone]$ mv log/TestApp.war deployments/

• After last command execution, the application gets copied to /deployments folder but does not gets deployed. The ".undeployed" marker file is still there as it is.

• Why am I getting the WAR file renamed to ".undeployed" ?