Jonathan Halliday wrote:
It's hard to do lazily when all the communication is top down - there is no mechanism for the child to call up to the parent to register.
This is what I was thinking also. Without having some way to expose the transaction managers as network endpoints (and the work within ArjunaJTA to make it possible to talk to them), as Jonathan says I think we are at the mercy of top-down approach and the workarounds that approach needs.