Creating XA datasource requires driver name and version

It's weird, because the XA datasource itself just relies on the DataSource class. The driver and version info is only needed to identify the module/service:

Request
{
"operation" => "add",
"address" => [
("profile" => "default"),
("subsystem" => "datasources"),
("xa-data-source" => "H2XADS")
],
"name" => "H2XADS",
"jndi-name" => "H2XADS",
"enabled" => true,
"xa-data-source-class" => "org.h2.jdbcx.JdbcDataSource",
"pool-name" => "H2XADS_Pool",
"user-name" => "sa",
"password" => "sa",
"xa-data-source-properties" => [("URL" => "jdbc:h2:mem:test")],
"child-type" => undefined
}

Response

Internal Server Error
{
"outcome" => "failed",
"result" => {"server-groups" => {"main-server-group" => {
"server-two" => {
"host" => "local",
"response" =>

{ "outcome" => "failed", "failure-description" => "java.util.NoSuchElementException: No child 'driver' exists" }

},
"server-one" => {
"host" => "local",
"response" =>

{ "outcome" => "failed", "failure-description" => "java.util.NoSuchElementException: No child 'driver' exists" }

}
}}},
"failure-description" => "Operation was not applied successfully to any servers"
}