Manuel, would you please have a look at the FO file I posted for the space interpretation stuff?
http://people.apache.org/~jeremias/fop/space-interpretation.fo The file forces a line-height of 10000mpt but the element list and the area tree will create a line height of 9999mpt. Not that it's a big problem on the visual side, but it is somewhat unexpected when you deal with test cases. The reason for this is LineLayoutManager.LineBreakingAlgorithm.makeLineBreakPosition() (the first statement). I'm not sure where to add the rounding difference. Maybe it can simply be added to "follow" or the second halfLeading becoming space-after could be incremented by 1 mpt. Thanks, Jeremias Maerki