[xwiki-devs] Editing the Xwiki core

Hello all, Can anybody verify if the process I am following for modifying the Xwiki core correct or not (I don't see the expected changes..and hence the concern!) I have the standalone version (for Windows) of Xwiki enterprise installed on my system. I am trying to see which module is invoked whenever I upload/delete attachments from any of the wiki pages and for this 1) I included some println statements in " com.xpn.xwiki.store.XWikiHibernateAttachmentStore.java" and in " com.xpn.xwiki.web.DeleteAttachmentAction.java" 2) built the xwiki-core (sometimes I also tried to built the Xwiki enterprise app itslef) 3) added the jar created - "xwiki-core-1.4-SNAPSHOT.jar" to the WEB-INf / lib folder of my XWiki installation (Is this what I shd be doing for changes to take effect?) 4) run the xwiki server 5) try to do some delete or attach actions, but I do not see the messages (from the println statements) in the start xwiki server command prompt. (Am I looking at the right place for the print msgs.?) Can anybody point out which step am I going wrong at? Basically, I want to figure out the process of modifying the core and seeing the changes in the XWiki Enterprise App I am running. (This will help me when I start adding the SVN integration capability to the core. I need to know what I am doing works or not?) Thanks for any help in this issue.