// Hi have a great day :) 
Hashtable environment = new Hashtable();

environment.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
environment.put(Context.PROVIDER_URL, "ldap://localhost:10389");
environment.put(Context.SECURITY_AUTHENTICATION, "simple");
environment.put(Context.SECURITY_PRINCIPAL, "cn=Joe Simms,ou=Users,dc=baeldung,dc=com");
environment.put(Context.SECURITY_CREDENTIALS, "12345");