Index: /applications/editors/josm/plugins/build-common.xml
===================================================================
--- /applications/editors/josm/plugins/build-common.xml	(revision 29693)
+++ /applications/editors/josm/plugins/build-common.xml	(revision 29694)
@@ -38,5 +38,5 @@
     <target name="compile" depends="init">
         <echo message="compiling sources for ${plugin.jar} ..."/>
-        <javac srcdir="src" debug="true" destdir="${plugin.build.dir}" includeantruntime="false">
+        <javac srcdir="src" debug="true" destdir="${plugin.build.dir}" includeantruntime="false" encoding="UTF-8">
             <compilerarg value="-Xlint:deprecation"/>
             <compilerarg value="-Xlint:unchecked"/>
Index: /applications/editors/josm/plugins/opendata/build.xml
===================================================================
--- /applications/editors/josm/plugins/opendata/build.xml	(revision 29693)
+++ /applications/editors/josm/plugins/opendata/build.xml	(revision 29694)
@@ -81,5 +81,5 @@
     <target name="compile" depends="init, compile_lang3, compile_poi, compile_jopendoc, compile_neptune, compile_j7zip">
         <echo message="compiling sources for  ${plugin.jar} ... "/>
-        <javac srcdir="src" debug="true" destdir="${plugin.build.dir}" includeAntRuntime="false">
+        <javac srcdir="src" debug="true" destdir="${plugin.build.dir}" includeAntRuntime="false" encoding="UTF-8">
             <classpath>
         	    <pathelement path="${plugin.build.dir}"/>
Index: /applications/editors/josm/plugins/videomapping/build.xml
===================================================================
--- /applications/editors/josm/plugins/videomapping/build.xml	(revision 29693)
+++ /applications/editors/josm/plugins/videomapping/build.xml	(revision 29694)
@@ -64,5 +64,5 @@
     <target name="compile" depends="init">
         <echo message="compiling sources for ${plugin.jar} ..."/>
-        <javac srcdir="src" classpathref="classpath" debug="true" destdir="${plugin.build.dir}">
+        <javac srcdir="src" classpathref="classpath" debug="true" destdir="${plugin.build.dir}" encoding="UTF-8">
             <compilerarg value="-Xlint:deprecation"/>
             <compilerarg value="-Xlint:unchecked"/>