I got this message compiling a map for Brazil with srtm:

java.lang.AssertionError: boundary node is replaced
    at uk.me.parabola.mkgmap.osmstyle.WrongAngleFixer.replaceCoord(WrongAngleFixer.java:111)
    at uk.me.parabola.mkgmap.osmstyle.WrongAngleFixer.access$300(WrongAngleFixer.java:51)
    at uk.me.parabola.mkgmap.osmstyle.WrongAngleFixer$CenterOfAngle.tryChange(WrongAngleFixer.java:881)
    at uk.me.parabola.mkgmap.osmstyle.WrongAngleFixer.removeWrongAngles(WrongAngleFixer.java:373)
    at uk.me.parabola.mkgmap.osmstyle.WrongAngleFixer.optimizeWays(WrongAngleFixer.java:100)
    at uk.me.parabola.mkgmap.osmstyle.StyledConverter.end(StyledConverter.java:608)
    at uk.me.parabola.mkgmap.reader.osm.ElementSaver.convert(ElementSaver.java:243)
    at uk.me.parabola.mkgmap.reader.osm.OsmMapDataSource.load(OsmMapDataSource.java:157)
    at uk.me.parabola.mkgmap.main.MapMaker.loadFromFile(MapMaker.java:154)
    at uk.me.parabola.mkgmap.main.MapMaker.makeMap(MapMaker.java:52)
    at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:263)
    at uk.me.parabola.mkgmap.main.Main$1.call(Main.java:259)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Exiting - if you want to carry on regardless, use the --keep-going option
Number of ExitExceptions: 1