For example:

./jboss-cli.sh --connect --commands="for overlay in :read-children-names(child-type=deployment-overlay),if ( outcome == success ) of /deployment-overlay=$overlay/deployment=SampleApp-1.0.war:read-resource,deployment-overlay remove --name=$overlay --deployments=SampleApp-1.0.war,end-if,done"

The result was: Can't reset to root in the middle of the path @21

Output doesn't contain enough information to identify root cause.