Index: applications/editors/josm/plugins/build-common.xml
===================================================================
--- applications/editors/josm/plugins/build-common.xml	(revision 33959)
+++ applications/editors/josm/plugins/build-common.xml	(revision 33960)
@@ -474,5 +474,5 @@
     <target name="test-compile" depends="test-init,dist" if="test.present">
         <sequential>
-            <javac debug="on" srcdir="${plugin.test.dir}/unit" destdir="${plugin.test.dir}/build/unit" encoding="UTF-8">
+            <javac debug="on" includeantruntime="false" srcdir="${plugin.test.dir}/unit" destdir="${plugin.test.dir}/build/unit" encoding="UTF-8">
                 <classpath>
                     <fileset refid="plugin.requires.jars"/>