diff --git a/Testing/build.xml b/Testing/build.xml
index 38fd656fca..08624326c5 100644
--- a/Testing/build.xml
+++ b/Testing/build.xml
@@ -15,24 +15,26 @@
         <fail message="Missing required argument: nsrl_path" unless="nsrl_path"/>
         <fail message="Missing required argument: keyword_path" unless="keyword_path"/>
     </target>
-    
+
+    <!-- use manifestclasspath (http://ant.apache.org/manual/Tasks/manifestclasspath.html) to put all the jar files that we need for junit/regression test
+                  to a single jar file: allJarsInUse.jar. Then we put this new jar to classpath for testing program to avoid command line Java classpath too long problem. -->    
     <target name="manifest-classpath">
-        <manifestclasspath property="tem.classpath" jarfile="parthing.jar">
+        <manifestclasspath property="tem.classpath" jarfile="allJarsInUse.jar">
             <classpath refid="test.${regression}.run.cp"/>
         </manifestclasspath>
-        <jar destfile="pathing.jar" basedir="build/classes">
+        <jar destfile="allJarsInUse.jar" basedir="build/classes">
             <manifest>
                 <attribute name="Class-Path" value="${tem.classpath}"/>
             </manifest>
         </jar>
         <path id="test.classpath">
-            <pathelement path="pathing.jar"/>
+            <pathelement path="allJarsInUse.jar"/>
         </path>
     </target>
 
     <target name="regression-test" depends="check-args,init,test-init,test-build, manifest-classpath" if="exists.test.qa-functional.src.dir">
         <test test.type="${regression}"/>
-        <delete file="pathing.jar"/>
+        <delete file="allJarsInUse.jar"/>
     </target>
     
     <macrodef name="test">