coldfusion 10 active directory authentication through jrun.security.ntauth

we are using a coldfusion component to  authenticate Active directory users to give access to intranet websites, below code is working fine in development version of coldfusion 10 but when i move this to production (enterprise edition) , its not working and throwing an error message "class not found jrun.security.ntauth"

<CFFUNCTION NAME="authenticateUser" ACCESS="REMOTE" OUTPUT="yes" STATIC="yes" HINT="Authenticates the user.">
   <CFARGUMENT NAME="userid" TYPE="string" REQUIRED="true" />
   <CFARGUMENT NAME="passwd" TYPE="string" REQUIRED="true" />
   <CFARGUMENT NAME="domain" TYPE="string" REQUIRED="true" />

   <CFTRY>
   <CFSCRIPT>
  ntauth = createObject("java", "jrun.security.NTAuth");
  ntauth.init(arguments.domain);
   ntauth.authenticateUser(arguments.userid, arguments.passwd);
  auth = true;
   </CFSCRIPT>

   <CFCATCH>
   <CFSET auth = false>
   </CFCATCH>
   </CFTRY>

   <CFRETURN AUTH>
   </CFFUNCTION>

please let me know if any of you come across this kind of situation