Seems that something changed in building, while comparing between Tuxguitar 1.2 and 1.4 versions. After googling, I found advice to compile with maven, but also seems that it is evil to use maven in OBS... But Fedora <https://apps.fedoraproject.org/packages/tuxguitar/sources/spec/> success compile with ant. Also, it would be nice to fix/update itext (dependency of TuxGuitar), because itext fails to build since Java 1.8.0_121: it needs explicit option "--allow-script-in-comments" in newer versions, but in older version this option will prevent build... But my knowledge about building Java packages limited... Please re-assign to another person