Problem with getting permissions of KM documents with KM api

Hello,

I'm developing application which is connected to KM file system and has to get permissions of a file. I'm using the following code:

wdUser = WDClientUser.getCurrentUser();

               IUser user = wdUser.getSAPUser();

               IResourceContext context = ResourceContext.getInstance(user);

               RID ridFile = RID.getRID("/documents/Public Documents/IdM.pdf");

               IResource resource;

               resource = ResourceFactory.getInstance().getResource(ridFile, context);

               // get Security Manager

               ISecurityManager securityManager = resource.getRepositoryManager().getSecurityManager(resource);

               // get ACLSecurity Manager

               IResourceAclManager irm = ((IAclSecurityManager)securityManager).getAclManager();

               // get ResourceAcl

               IResourceAcl aclrec = irm.getAcl(resource);

The problem is that after getting IResourceAcl aclrec = irm.getAcl(resource); the variable aclrec is null. How can i get the ACL for a resource? I looked at an example for creating an acl at: http://forums.sdn.sap.com/thread.jspa?threadID=1983946 but getting of acl is kind of different task. Is there any way to activate ACL and get a real IResourceAcl not null?

Edited by: Teodor Tanev on Feb 7, 2012 3:10 PM