After porting KIX (Football World Cup tipping) from Scala 2.7.7 to Scala 2.8 the following error shows up:

Message: java.lang.NullPointerException
	net.liftweb.mapper.MapperRules$$anonfun$5.apply(MetaMapper.scala:125)
	net.liftweb.mapper.MapperRules$$anonfun$5.apply(MetaMapper.scala:125)
	net.liftweb.mapper.MappedField$class.dbColumnName(MappedField.scala:620)

You can reproduce it by taking it from git://github.com/weiglewilczek/kix.git using the 2-hseeberger branch.