Index: build.xml
===================================================================
--- build.xml.orig	2010-04-22 02:38:35.000000000 +0200
+++ build.xml	2010-04-22 02:38:59.000000000 +0200
@@ -51,7 +51,7 @@
         <!--    Manifest-Version: 1.0 -->
         <!--    Main-Class: com.foo.Main -->
         <!-- 3. Pass to <jar>: manifest="myapp.mf" -->
-        <jar jarfile="bin/jutils.jar" compress="true" basedir="classes">
+        <jar jarfile="bin/jutils.jar" compress="true" index="true" basedir="classes">
             <include name="net/java/**"/>
             <exclude name="**/*.java"/>
             <exclude name="**/*.form"/>