I'm splitting with splitter r185 and mkgmap r2098 as well as r2100 fails. I used previously r2077 which works ok. I'm using Geofabric extract for Finland if that matters. I'm compiling with following options and command lines: java -Xmx2000M -jar mkgmap/mkgmap.jar --remove-short-arcs --style-file=styles/masterstyle --description='Openstreetmap' --family-id=4 --product-id=45 --series-name='OSM-AllInOne-EU-bmap' --family-name=OSM_ai1 --mapname=63240345 --draw-priority=5 --route --index --gmapsupp tiles/*.osm.pbf styles/master.TYP Error messages (with r2100) java.lang.ClassCastException: uk.me.parabola.imgfmt.app.srt.MultiSortKey cannot be cast to uk.me.parabola.imgfmt.app.srt.SrtSortKey at uk.me.parabola.imgfmt.app.srt.SrtSortKey.compareTo(SrtSortKey.java:39) at uk.me.parabola.imgfmt.app.srt.SrtSortKey.compareTo(SrtSortKey.java:22) at uk.me.parabola.imgfmt.app.srt.CombinedSortKey.compareTo(CombinedSortKey.java:43) at uk.me.parabola.imgfmt.app.srt.CombinedSortKey.compareTo(CombinedSortKey.java:22) at java.util.Arrays.mergeSort(Arrays.java:1157) at java.util.Arrays.mergeSort(Arrays.java:1169) at java.util.Arrays.mergeSort(Arrays.java:1168) at java.util.Arrays.mergeSort(Arrays.java:1169) at java.util.Arrays.mergeSort(Arrays.java:1168) at java.util.Arrays.mergeSort(Arrays.java:1169) at java.util.Arrays.mergeSort(Arrays.java:1168) at java.util.Arrays.mergeSort(Arrays.java:1169) at java.util.Arrays.mergeSort(Arrays.java:1168) at java.util.Arrays.mergeSort(Arrays.java:1168) at java.util.Arrays.mergeSort(Arrays.java:1168) at java.util.Arrays.mergeSort(Arrays.java:1168) at java.util.Arrays.mergeSort(Arrays.java:1168) at java.util.Arrays.sort(Arrays.java:1092) at java.util.Collections.sort(Collections.java:134) at uk.me.parabola.imgfmt.app.net.NETFile.sortRoads(NETFile.java:145) at uk.me.parabola.imgfmt.app.net.NETFile.writePost(NETFile.java:86) at uk.me.parabola.mkgmap.build.MapBuilder.makeMap(MapBuilder.java:206) at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:97) at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:61) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:220) at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:217) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:636) Exiting - if you want to carry on regardless, use the --keep-going option