Unable to set datasource attribute flush-strategy via CLI

[standalone@localhost:9999 /] /subsystem=datasources/data-source=test:read-attribute(name=flush-strategy)
{
"outcome" => "success",
"result" => "FailingConnectionOnly"
}

[standalone@localhost:9999 /] /subsystem=datasources/data-source=test:write-attribute(name=flush-strategy,value="EntirePool")
{
"outcome" => "failed",
"failure-description" => "JBAS010448: Invalid parameter name: flush-strategy",
"rolled-back" => true
}