Is <jta-data-source/> a property?

Personal opinion is I’d not see it as a property. But the spec seems to “workaround” the otherwise lacking capability to override such “non properties” at boot - so I’d think there’s no harm in exposing such configuration aspects as a property too.

But happy to leave this unspecified, especially since other relevant frameworks seem to no longer need it - assuming Phillip Webb is fine with the limitation of Datasource that Steve just pointed out.