Getting certificates from PKCS11 Smartcard without PIN/password

SOLVED

I have found a way to get the public certificate from the smart card.

    String pkcs11Config = "name = SmartCard\nlibrary = /path/to/libraby.so";
    ByteArrayInputStream confStream = new ByteArrayInputStream(pkcs11Config.getBytes());
    Provider prov = new sun.security.pkcs11.SunPKCS11(confStream);
    Security.addProvider(prov);
    KeyStore cc = null;
    String pin = "";
    try {
        cc = KeyStore.getInstance("PKCS11",prov);
        KeyStore.PasswordProtection pp = new KeyStore.PasswordProtection(pin.toCharArray());
        cc.load(null ,  pp.getPassword() );
        Enumeration aliases = cc.aliases();
        while (aliases.hasMoreElements()) {
            Object alias = aliases.nextElement();
            try {
                X509Certificate cert0 = (X509Certificate) cc.getCertificate(alias.toString());
                System.out.println("I am: " + cert0.getSubjectDN().getName());
            } catch (Exception e) {
                continue;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }

The KeyStore.load() should be provided with PaswordProtection object with empty pin. This allows me to read the public certificate and extract the data from it.

I have tested this with 3 different types of smart cards and it is working on all of them