LDAP Dynamic Groups

Question

Hi,
I have been trying to do some coding around - fetching members of dynamic ldap groups. In both these code snippets.. I get the same exception:
java.lang.ClassCastException: com.sun.jndi.ldap.LdapCtx
no matter whatever i tried. Can anyone please - let me know what could be causing this exception.
Regards.
String filter = LDAPRealm.DYNAMIC_GROUP_FILTER;
          String[] targets = new String[] { target, "memberUrl" };
          try {
               SearchControls ctls = new SearchControls();
               ctls.setReturningAttributes(targets);
               ctls.setSearchScope(SearchControls.SUBTREE_SCOPE);
               ctls.setReturningObjFlag(true);
               NamingEnumeration e = context.search(baseDN, filter, ctls);
               while(e.hasMore()) {
                    SearchResult res = (SearchResult)e.next();
                    Object searchedObject = res.getObject();
                    //if(searchedObject instanceof com.sun.jndi.ldap.obj.GroupOfURLs){ // dynamic group
                         com.sun.jndi.ldap.obj.GroupOfURLs gurls = (com.sun.jndi.ldap.obj.GroupOfURLs) searchedObject;
                         Principal x500principal = new X500Principal(userDN);
                         if (gurls.isMember(x500principal)) {
and
java.security.acl.Group obj = (java.security.acl.Group)ctx.lookup(groupDN);
               Enumeration members = obj.members();
               Principal member = null;
               while (members.hasMoreElements()) {
                    member = (Principal)members.nextElement();
                    memberDNs.add(member.getName());
               }

Answer 1

How is this different from [your previous question|http://forums.sun.com/thread.jspa?threadID=5434523&messageID=10965220#10965220]? If it is the same queston, then please stay in the same thread.