2008.11.18 15:15 "[Tiff] Reading Tiffs with Java", by Richard Nolde
I don't use Java at all, but I see a call to read a TILE from the TIFF image. Group F/ Fax images are not Tiled. They are stripped if I remember correctly so there won't be any tiles in them and the call to read tile will fail. Ghfaxviewer, qfaxreader, etc are just tiff readers that happen to understand G3/G4 compressed TIFF images, which is these faxes are. Run tiffdump or tiffinfo on them and see if they don't have strips instead of tiles.