LDAP Context properties and LDAP authentication.

[butter scotch]

I have a doubt in LDAP context creation and authentication of a user from LDAP server.

While creating the context of LDAP, i use binding domain name and binding password as shown below:

Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL,"ldap://yoda:391");
env.put(Context.SECURITY_AUTHENTICATION,"simple");
env.put(Context.SECURITY_PRINCIPAL,"cn=directory manager");
env.put(Context.SECURITY_CREDENTIALS,"passwordadmin");
DirContext ctx = new InitialDirContext(env);


Now after successful creation of LDAP context, i want to authenticate one user from LDAP server eg: username : "[e-mail]" and password : "passwd1@3".
I am stuck at this point that how to authenticate this user from LDAP server through Java Client.