Class to Authenticate a user in LDAP

LdapConnection.java

package com.test.ldap;

import java.util.Properties;

import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;

public class LdapConnection {
    public static void main(String args[]) {

        String serverURL = "ldap://localhost:389";
        String bindDN = "cn=Kauan Martins,cn=Kevin Martins,cn=developers,ou=users,dc=ictsldap,dc=com";
        String bindPassword = "notMyPass";

        Properties parms = new Properties();
        parms.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
        parms.put(Context.PROVIDER_URL, serverURL);
        parms.put(Context.SECURITY_AUTHENTICATION, "simple");
        parms.put(Context.SECURITY_PRINCIPAL, bindDN);
        parms.put(Context.SECURITY_CREDENTIALS, bindPassword);

        DirContext ctx = null;

        try {
            ctx = new InitialDirContext(parms);
            System.err.println("Successful authenticated bind");
        } catch (NamingException ne) {
            System.err.println("Unsuccessful authenticated bind\n");
            ne.printStackTrace(System.err);
        } finally {
            if (ctx != null) {
                try {
                    ctx.close();
                } catch (NamingException ne) {
                    System.err.println("Error close resource");
                }
            }
        }

    }
}