throw new IOException("Malformed SPNEGO token " + constructed);

            ASN1Sequence vec = (ASN1Sequence) constructed.getBaseObject();


                ASN1ObjectIdentifier spnego = (ASN1ObjectIdentifier) vec.getObjectAt(0);
                if ( !SPNEGO_OID.equals(spnego) ) {
                    throw new IOException("Malformed SPNEGO token, OID " + spnego);
                }

    }

    protected static boolean isMaskedValue(final String key) {
        return "http.proxy.password".equals(key) //
                || "ldap.admin.security.credentials".equals(key) //
                || "spnego.preauth.password".equals(key) //
                || "app.cipher.key".equals(key) //
                || "oic.client.id".equals(key) //
                || "oic.client.secret".equals(key);
    }