I've been encountering this error some times ago, could it be solved, in the source tree there are exec permissions but after Maven build , perms ars set wrong, without exec flag.
Cannot run program "/root/code-browse/incubator-cloudstack/client/target/cloud-client-ui-4.1.0-SNAPSHOT/WEB-INF/classes/scripts/vm/systemvm/injectkeys.sh": error=13, Permission denied
