Message12838

Thanks for taking so much care to reproduce it and trying 2.7.2b2. I'll take a look.

I think test271 "__getattribute__ not found on type null" sounds like the original bug (here or #2609), or rather sounds like 2.7.1 with the first attempted fix. The symptom was use of a type while functions were still being filled in. That's fixed. 

test272b2 gives "AttributeError: 'NoneType' object has no attribute 'getValue'", which I think means that getNamedItem("class") returned null (as None), which iot does to signify there is no attribute called "class". So the question is why that would suddenly happen in one thread among thousands doing identical work.

It may be a race but it does not indicate publication of an incomplete type, so I've opened #2848.