Ok, instead of asking for further help on the last issue I had a look into the convertors myself - they are nicely short :) And I guess I found the reason for this problem: The PlainFloatConvertor returned a BigDecimal object - I guess just a copy & paste problem. I will commit it now. Please confirm my observation.
I had used formatting convertor by myself, I guess that's the reason why I'd not noticed the typo. Yes, it was typo, thanks for fixing.
Vadim
