--- a/java/build.common.xml	Fri Jun 15 21:52:34 2018 +0100
+++ b/java/build.common.xml	Wed Jul 25 08:23:35 2018 +0000
@@ -50,6 +50,7 @@
     	<mkdir dir="${build.bin.dir}"/>
     	<javac srcdir="${build.src.dir}"
     	       destdir="${build.bin.dir}"
+               encoding="utf-8"
     	       classpathref="build.classpath"
     	       debug="true"
     	       debuglevel="lines,vars,source"
@@ -113,6 +114,7 @@
         <mkdir dir="${build.bin-tests.dir}"/>
         <javac srcdir="${build.src-tests.dir}"
                destdir="${build.bin-tests.dir}"
+               encoding="utf-8"
                classpathref="test.classpath"
                debug="true"
                debuglevel="lines,vars,source"