Get list of LDAP domain usernames using Java

Question

Ldap usernames should appear in the input field as an autocomplete function. I am trying to get a list of users as shown below:

String ldapURL = "ldap://192.26.75.5:389/dc=northamerica,dc=company,dc=com"; String principalPrefix = "domainName"; String username = SecurityContextHolder.getContext().getAuthentication().getName(); String password = SecurityContextHolder.getContext().getAuthentication().getCredentials().toString(); Hashtable<String, String>environment = new Hashtable<String, String>(); environment.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory"); environment.put(Context.PROVIDER_URL,ldapURL); environment.put(Context.SECURITY_AUTHENTICATION,"simple"); environment.put(Context.SECURITY_PRINCIPAL,principalPrefix + "\\" + username); environment.put(Context.SECURITY_CREDENTIALS,password); environment.put( Context.REFERRAL, "follow" ); DirContext context = null; NamingEnumeration<SearchResult> enumResult = null; try { context = new InitialDirContext(environment); SearchControls controls = new SearchControls(); controls.setSearchScope(SearchControls.SUBTREE_SCOPE); String[] attrIDs ={"ou","uid", "givenname", "sn", "mail"}; controls.setReturningAttributes(attrIDs); enumResult = context.search("","(&(objectCategory=person)(objectClass=user)(CN=*))", controls); if(enumResult != null) { //authentication successful } } catch(Exception e){ System.out.println(e.getMessage()); } 

However, "enumResult" always gets a single-user value. Let me know if I am missing something or if this is the wrong way to do it. Any help / advice / suggestion would be appreciated! Thanks.