8005281: (props) loadFromXML/storeToXML with small parser is not thread safe

[Alan Bateman]

The small footprint XML parser that we pushed yesterday for use with 
Properties isn't thread safe but the properties provider assumes that it 
is. I should have spotted this before pushing the changes. The change to 
fix it is trivial and I've added a basher test that duplicates it almost 
immediately. The webrev is here:

http://cr.openjdk.java.net/~alanb/8005281/webrev/

Thanks,
Alan.