What about a debugger? Did you had a look at the failing code piece in the:
DefaultAttributeResolver.java on line 42 Which variable is null, what the origin of the var? Who should set it - if it is set somewhere why its lost ... more specific question are needed than some error outputs with traces to which no one got an sample app. Its so dated code - you need to supply more information here so we may have a chance to help you. Cheers Torsten
