LDAP search base DN not working

Question

I'm trying to perform an LDAP search into many different OUs that are located at the root of the directory.

Context initialization:

Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_CREDENTIALS, "somePassword");
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.SECURITY_PRINCIPAL, "MYDOMAIN\\\\myUsername");
env.put(Context.PROVIDER_URL, "ldap://myLdapServer:389");
searchControls = new SearchControls();
searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE);
ctx = new InitialDirContext(env);

So for searching an user I call

ctx.search("OU=OrgUnitOne,DC=mysite,DC=com", "(sAMAccountName=someUserName)", searchControls)

or

ctx.search("OU=OrgUnitTwo,DC=mysite,DC=com", "(sAMAccountName=someUserName)", searchControls)

and either works fine. But since I want to search into all of OUs in the root of DA, I have to use another baseDN for the search, which I've failed to find. I've tried the following but none seems to work...

Without OU:

ctx.search("DC=mysite,DC=com", "(sAMAccountName=someUserName)", searchControls)
//output:
//javax.naming.PartialResultException: Unprocessed Continuation Reference(s); remaining name 'DC=mysite,DC=com'

Empty searchBase string:

ctx.search("", "(sAMAccountName=someUserName)", searchControls)
//output:
//javax.naming.NameNotFoundException: [LDAP: error code 32 - 0000208D: NameErr: DSID-031001E5, problem 2001 (NO_OBJECT), data 0, best match of:'']; remaining name ''

Desperate wildcard *

ctx.search("OU=\*,DC=mysite,DC=com", "(sAMAccountName=someUserName)", searchControls)
//output:
//javax.naming.NameNotFoundException: [LDAP: error code 32 - 0000208D: NameErr: DSID-0310020A, problem 2001 (NO_OBJECT), data 0, best match of:'DC=mysite,DC=com']; remaining name 'OU=*,DC=mysite,DC=com'

Desperate wildcard %

ctx.search("OU=%,DC=mysite,DC=com", "(sAMAccountName=someUserName)", searchControls)
//output:
//javax.naming.NameNotFoundException: [LDAP: error code 32 - 0000208D: NameErr: DSID-0310020A, problem 2001 (NO_OBJECT), data 0, best match of:'DC=mysite,DC=com']; remaining name 'OU=%,DC=mysite,DC=com'

Desperate OR operator |

ctx.search("OU=OrgUnitOne|OrgUnitTwo,DC=mysite,DC=com", "(sAMAccountName=someUserName)", searchControls)
//output:
//javax.naming.NameNotFoundException: [LDAP: error code 32 - 0000208D: NameErr: DSID-0310020A, problem 2001 (NO_OBJECT), data 0, best match of:'DC=mysite,DC=com'];    

remaining name 'OU=OrgUnitOne|OrgUnitTwo,DC=mysite,DC=com'

Is there a way to achieve this search over all the root OUs?

Solution

This works for me:

Hashtable<String, String> ldapEnv = new Hashtable<String, String>(11);
ldapEnv.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
ldapEnv.put(Context.PROVIDER_URL,  "ldap://ldapHost");
ldapEnv.put(Context.SECURITY_AUTHENTICATION, "simple");
ldapEnv.put(Context.SECURITY_PRINCIPAL, "CN=Administrator,CN=Users,DC=domain,DC=com");
ldapEnv.put(Context.SECURITY_CREDENTIALS, "secret");
ldapContext = new InitialDirContext(ldapEnv);
// Create the search controls         
SearchControls searchCtls = new SearchControls();
// Specify the attributes to return
String returnedAtts[]={"sn","givenName", "samAccountName"};
searchCtls.setReturningAttributes(returnedAtts);
// Specify the search scope
searchCtls.setSearchScope(SearchControls.SUBTREE_SCOPE);
// specify the LDAP search filter
String searchFilter = "(&(samAccountName=userName))";
// Specify the Base for the search
String searchBase = "dc=domain,dc=com";
// initialize counter to total the results
int totalResults = 0;
// Search for objects using the filter
NamingEnumeration<SearchResult> answer = ldapContext.search(searchBase, searchFilter, searchCtls);
// Loop through the search results
while (answer.hasMoreElements()) {
    SearchResult sr = (SearchResult)answer.next();
    totalResults++;
    System.out.println(">>>" + sr.getName());
    Attributes attrs = sr.getAttributes();
    System.out.println(">>>>>>" + attrs.get("samAccountName"));       
}
System.out.println("Total results: " + totalResults);
ldapContext.close();