Cannot resolve expression in connection URL for datasource in EAP 6

Issue

• We are trying to create a XA-data source using this command.

/subsystem=datasources/xa-data-source=TestDS/xa-datasource-properties=URL:add(value="jdbc:oracle:thin:@${env.JBDB_URL}:1521:XYZ")

This is the error message that I see in server.log during startup

process-state: reload-required
{
   "outcome" => "failed",
   "failure-description" => "JBAS014802: Cannot resolve expression 'jdbc:oracle:thin:@${env.JBDB_URL}:1521:XYZ'",
   "rolled-back" => true,
   "response-headers" => {"process-state" => "reload-required"}
}