Index: contrib/lucli/build.xml
===================================================================
--- contrib/lucli/build.xml	(revision 544694)
+++ contrib/lucli/build.xml	(working copy)
@@ -22,9 +22,11 @@
   <import file="../contrib-build.xml"/>
 
   <target name="jar" depends="compile" description="Create JAR">
-    <jar jarfile="${build.dir}/${final.name}.jar"
-         basedir="${build.dir}/classes/java"
-         manifest="META-INF/MANIFEST.MF"
-    />
+    <jarify>
+      <manifest-attributes>
+        <attribute name="Main-Class" value="lucli.Lucli" />
+        <attribute name="Class-Path" value="lib/jline.jar lib/lucene.jar" />
+      </manifest-attributes>
+    </jarify>
   </target>
 </project>
Index: common-build.xml
===================================================================
--- common-build.xml	(revision 544694)
+++ common-build.xml	(working copy)
@@ -146,27 +146,70 @@
 
   <target name="jar-core" depends="compile-core"
     description="Packages the JAR file">
-    <jar
-      destfile="${build.dir}/${final.name}.jar"
-      basedir="${build.dir}/classes/java">
-      <manifest>
-        <attribute name="Created-By" value="Apache Lucene Java"/>
-        <section name="org/apache/lucene/">
-          <attribute name="Specification-Title" value="Lucene Search Engine"/>
+    <jarify />
+  </target>
+
+  <macrodef name="jarify" description="Builds a JAR file">
+    <attribute name="title" default="Lucene Search Engine: ${ant.project.name}" />
+    <element name="manifest-attributes" optional="yes"/>
+    <sequential>
+      <!-- If possible, include the svnversion -->
+      <exec dir="." executable="svnversion"
+            outputproperty="svnversion" failifexecutionfails="false">
+        <arg line="."/>
+      </exec>
+     
+      <jar
+        destfile="${build.dir}/${final.name}.jar"
+        basedir="${build.dir}/classes/java">
+        <manifest>
+          <!--
+          http://java.sun.com/j2se/1.5.0/docs/guide/jar/jar.html#JAR%20Manifest
+          http://java.sun.com/j2se/1.5.0/docs/guide/versioning/spec/versioning2.html
+          http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Package.html
+          http://java.sun.com/j2se/1.5.0/docs/api/java/util/jar/package-summary.html
+          http://java.sun.com/developer/Books/javaprogramming/JAR/basics/manifest.html
+          -->
+          <!-- Don't set 'Manifest-Version' it identifies the version of the
+               manifest file format, and should allways be 1.0 (the default)
+  
+               Don't set 'Created-by' attribute, it's purpose is 
+               to identify the version of java used to build the jar,
+               which ant will do by default.
+  
+               Ant will happily override these with bogus strings if you
+               tell it to, so don't.
+  
+               NOTE: we don't use section info because all of our manifest data
+               applies to the entire jar/war ... no package specific info.
+          -->
+          <attribute name="Specification-Title" value="@{title}"/>
+          <!-- spec version must match "digit+{.digit+}*" -->
           <attribute name="Specification-Version" value="${version}"/>
-          <attribute name="Specification-Vendor" value="Lucene"/>
+          <attribute name="Specification-Vendor"
+                     value="The Apache Software Foundation"/>
           <attribute name="Implementation-Title" value="org.apache.lucene"/>
-          <attribute name="Implementation-Version" value="build ${DSTAMP}"/>
-          <attribute name="Implementation-Vendor" value="Lucene"/>
-        </section>
-      </manifest>
-      <metainf dir="${common.dir}">
-        <include name="LICENSE.txt"/>
-        <include name="NOTICE.txt"/>
-      </metainf>
-    </jar>
-  </target>
+          <!-- impl version can be any string -->
+          <attribute name="Implementation-Version"
+                     value="${version} ${svnversion} - ${user.name} - ${DSTAMP} ${TSTAMP}"/>
+          <attribute name="Implementation-Vendor"
+                     value="The Apache Software Foundation"/>
+          <attribute name="X-Compile-Source-JDK" 
+                     value="${javac.source}"/>
+          <attribute name="X-Compile-Target-JDK" 
+                     value="${javac.target}"/>
+          <manifest-attributes/>
+        </manifest>
+        <metainf dir="${common.dir}">
+          <include name="LICENSE.txt"/>
+          <include name="NOTICE.txt"/>
+        </metainf>
+      </jar>
+    </sequential>
+  </macrodef>
 
+
+  
   <target name="compile-test" depends="compile-core">
     <compile
       srcdir="src/test"