Подключить активную директорию с поддержкой ssl (ldaps)

я пытаюсь подключиться к активному каталогу с поддержкой ssl.

Я попробовал шаги со следующего веб-сайта.

http://confluence.atlassian.com/display/CROWD/Configuring+an+SSL+Certificate+for+Microsoft+Active+Directory

когда я пытаюсь подключить активный каталог из кода Java, он дает следующую ошибку.

Exception in thread "main" javax.naming.CommunicationException: simple bind fail
ed: 172.16.12.4:636 [Root exception is java.net.SocketException: Connection rese
t]
        at com.sun.jndi.ldap.LdapClient.authenticate(Unknown Source)
        at com.sun.jndi.ldap.LdapCtx.connect(Unknown Source)
        at com.sun.jndi.ldap.LdapCtx.<init>(Unknown Source)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURL(Unknown Source)
        at com.sun.jndi.ldap.LdapCtxFactory.getUsingURLs(Unknown Source)
        at com.sun.jndi.ldap.LdapCtxFactory.getLdapCtxInstance(Unknown Source)
        at com.sun.jndi.ldap.LdapCtxFactory.getInitialContext(Unknown Source)
        at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
        at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
        at javax.naming.InitialContext.init(Unknown Source)
        at javax.naming.InitialContext.<init>(Unknown Source)
        at javax.naming.directory.InitialDirContext.<init>(Unknown Source)
        at ConnectActiveDirectory.main(ConnectActiveDirectory.java:39)
Caused by: java.net.SocketException: Connection reset
        at java.net.SocketInputStream.read(Unknown Source)
        at com.sun.net.ssl.internal.ssl.InputRecord.readFully(Unknown Source)
        at com.sun.net.ssl.internal.ssl.InputRecord.read(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source)

        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.waitForClose(Unknown Sourc
e)
        at com.sun.net.ssl.internal.ssl.HandshakeOutStream.flush(Unknown Source)

        at com.sun.net.ssl.internal.ssl.Handshaker.kickstart(Unknown Source)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.kickstartHandshake(Unknown
 Source)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Un
known Source)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(Unknown Source
)
        at com.sun.net.ssl.internal.ssl.AppOutputStream.write(Unknown Source)
        at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
        at java.io.BufferedOutputStream.flush(Unknown Source)
        at com.sun.jndi.ldap.Connection.writeRequest(Unknown Source)
        at com.sun.jndi.ldap.Connection.writeRequest(Unknown Source)
        at com.sun.jndi.ldap.LdapClient.ldapBind(Unknown Source)
        ... 13 more

Код, который я использую,

import java.util.Hashtable;
import javax.naming.*;
import javax.naming.directory.*;

public class ConnectActiveDirectory {

    public static void main(String[] args) throws NamingException {
        Hashtable env = new Hashtable();
        env.put(Context.SECURITY_AUTHENTICATION, "simple");
        env.put(Context.SECURITY_PRINCIPAL,"[email protected]");
        env.put(Context.SECURITY_CREDENTIALS, "password");
        env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        env.put(Context.PROVIDER_URL, "ldaps://172.16.12.4:636/cn=Users,dc=mysite,dc=com");
        try{
            java.io.InputStream in = new java.io.FileInputStream("C:\\client.crt");
            java.security.cert.Certificate c = java.security.cert.CertificateFactory.getInstance("X.509").generateCertificate(in);
            java.security.KeyStore ks = java.security.KeyStore.getInstance("JKS");
            ks.load(null);
            if (!ks.containsAlias("alias ldap")) {
                ks.setCertificateEntry("alias ldap", c);
            }
            java.io.OutputStream out = new java.io.FileOutputStream("C:\\keystorefile.jks");
            char[] kspass = "changeit".toCharArray();
            ks.store(out, kspass);
            out.close();        
        }catch(Exception e){
            e.printStackTrace();
        }
        System.setProperty("javax.net.ssl.trustStore", "C:\\keystorefile.jks");
        DirContext ctx = new InitialDirContext(env);
        NamingEnumeration enm = ctx.list("");
        while (enm.hasMore()) {
            System.out.println(enm.next());
        }
        ctx.close();
    }
}

я делаю какую-либо ошибку?

где я могу получить хороший учебник, чтобы сделать ssl-соединение с активным каталогом?

делает http://confluence.atlassian.com/display/CROWD/Configuring+an+SSL+Certificate+for+Microsoft+Active+Directory имеет правильные шаги для создания и подключения активного каталога с ssl?

может кто-нибудь, пожалуйста, помогите мне.