[mkgmap-dev] Encoding problem with splitter

Running splitter I get an error related with encoding: java -Xmx750M -jar splitter.jar ../JOSM/peninsula.osm Error opening or reading file com.sun.org.apache.xerces.internal.impl.io.MalformedByteSequenceException: Invalid byte 2 of 3-byte UTF-8 sequence. Total time 37s Any hint? Cheers Carlos