[xwiki-users] How to deploy Java Component and save files?

Hi users, My project in XWiki consists in a java component which offers some APIs through a script service called by a Velocity script in a wiki page. I put my .jar in the directory C:\XWiki Enterprise 7.3\*webapps\xwiki\WEB-INF\lib *and this is the Velocity and HTML code that I've put in my XWiki page: {{velocity}} #if("$!request.evolver" == 1) ## Request for creating a new instance $services.pars.parse() $services.evo.removeInstance("Take bike") $response.sendRedirect($xwiki.getURL('Main.WebHome')) ## Stop processing, since we already sent a redirect. #stop #end {{html}} <form action="" id="newEvolution" method="post"> <div> <input type="hidden" name="evolver" value="1"/> <span class="buttonwrapper"> <input type="submit" value="Evolve" class="button"/> </span> </div> </form> {{/html}} {{/velocity}} Let first say that nothing is happening when I click on the "Evolve" button and I don't know why...it looks like it should work, also because creating a Main_test class in Eclipse, I can run my software calling exactly the same methods and it works! Moreover my component must create some files to store some information, thus I am wondering where to save those files in order to make them accessible by the component. Any suggestions? Thanks in advance, Giordano.