How To add / remove module to global-modules using CLI in JBoss EAP 6

Issue

• I'm not able to add a module to the global-modules section using CLI, I only get the failure description:

[standalone@localhost:9999 /] /subsystem=ee:write-attribute(name=global-modules, value=["example.conf"])
{
    "outcome" => "failed",
    "failure-description" => [
        "JBAS014798: Validation failed for global-modules",
        "JBAS014746: name may not be null"
    ],
    "rolled-back" => true
}