diff -Naur ../wsdl4j-1.5.1.orig/build.xml ./build.xml
--- ../wsdl4j-1.5.1.orig/build.xml	2005-04-12 16:10:33.000000000 +0200
+++ ./build.xml	2006-09-22 15:35:08.000000000 +0200
@@ -118,7 +118,8 @@
   <!-- =================================================================== -->
   <target name="compile" depends="prepare">
     <mkdir dir="${build.dest}"/>
-    <javac srcdir="${src.dir}" destdir="${build.dest}" debug="${debug}">
+    <javac srcdir="${src.dir}" destdir="${build.dest}" debug="${debug}"
+           target="1.4" source="1.4">
       <patternset refid="javac.source.files"/>
     </javac>