Java to Active Directory Ldap Java. Net. Socketexception: Connection or Outbound Has Closed

Good evening,

I have been facing this error for a couple of days by now, and despite looking for a solution all over the web, I coul'd fix this error.

import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingEnumeration;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttribute;
import javax.naming.directory.BasicAttributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;

public class LDAPtest {
public static void main(String[] args) {
    
    try {
        
        String keystorePath = "C:/Program Files/Java/jdk-13.0.2/lib/security/cacerts";
        System.setProperty("javax.net.ssl.keyStore", keystorePath);
         
        System.setProperty("javax.net.ssl.keyStorePassword", "changeit");
        
        Hashtable<String, String> ldapEnv = new Hashtable<>(); 
        ldapEnv.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        ldapEnv.put(Context.PROVIDER_URL, "ldaps://localhost:10636");
        ldapEnv.put(Context.SECURITY_AUTHENTICATION,"simple");
        ldapEnv.put(Context.SECURITY_PRINCIPAL,"uid=admin,ou=system");
        ldapEnv.put(Context.SECURITY_CREDENTIALS,"secret");
        
        DirContext connection = new InitialDirContext(ldapEnv);
        System.out.println("Benvenuto " + connection);
        NamingEnumeration enm = connection.list("");

        while (enm.hasMore()) {
            System.out.println(enm.next());
        }

        enm.close();
        connection.close();
        
        
    }catch(Exception e) {
        e.printStackTrace();
    }
    
}

}

This code is actually working when SSL is not tested, replacing the

ldapEnv.put(Context.PROVIDER_URL, "ldaps://localhost:10636");

with

ldapEnv.put(Context.PROVIDER_URL, "ldap://localhost:10389");

I made the setup for the LDAP server with Apache Directory Studio, and followed this tutorial here in order to get the LDAPS to work:

So I made the certificate, even installed it and imported it with keytool into cacerts. I enabled portforwarding for the chosen port (10636), but still, I'm getting this exception:

javax.naming.CommunicationException: simple bind failed: localhost:10636 [Root exception is 
java.net.SocketException: Connection or outbound has closed]
at (LdapClient.java:219)
at (LdapCtx.java:2795)
at (LdapCtx.java:320)
at (LdapCtxFactory.java:225)
at (LdapCtxFactory.java:189)
at (LdapCtxFactory.java:243)
at (LdapCtxFactory.java:154)
at (LdapCtxFactory.java:84)
at (NamingManager.java:730)
at (InitialContext.java:305)
at (InitialContext.java:236)
at (InitialContext.java:208)
at (InitialDirContext.java:130)
at Prova3.main(Prova3.java:31)
Caused by: java.net.SocketException: Connection or outbound has closed
at (SSLSocketImpl.java:1246)
at (BufferedOutputStream.java:81)
at (BufferedOutputStream.java:142)
at (Connection.java:398)
at (Connection.java:371)
at (LdapClient.java:359)
at (LdapClient.java:214)
... 13 more

Thank you in advance