diff -up freecol/build.xml~ freecol/build.xml
--- freecol/build.xml~	2014-10-22 20:19:45.000000000 +0200
+++ freecol/build.xml	2014-10-22 20:19:55.891317238 +0200
@@ -98,6 +98,7 @@
         <mkdir dir="${freecol.build.dir}"/>
         <javac srcdir="${freecol.src.dir}"
                destdir="${freecol.build.dir}"
+               encoding="utf8"
                classpathref="freecol.build.classpath"
                debug="on"
                optimize="on"