Add source and target to compile for 1.6 as well as defining the encoding
diff --git a/build.xml b/build.xml
index 8f1feeb..694103c 100644
--- a/build.xml
+++ b/build.xml
@@ -152,7 +152,7 @@
 

     <target name="compile.module.uwc.production" description="compile module(s) uwc production classes">

         <mkdir dir="${uwc.output.classes.dir}"/>

-        <javac2 destdir="${uwc.output.classes.dir}" debug="${compiler.debug}" nowarn="${compiler.generate.no.warnings}"

+        <javac2 source="1.6" target="1.6" encoding="ISO-8859-1" destdir="${uwc.output.classes.dir}" debug="${compiler.debug}" nowarn="${compiler.generate.no.warnings}"

                 memoryMaximumSize="${compiler.max.memory}" fork="true" executable="${module.jdk.home.uwc}/bin/javac">

             <compilerarg line="${compiler.args.uwc}"/>

             <bootclasspath refid="uwc.module.bootclasspath"/>