assertThrows(NullPointerException.class, () -> {
            DialectVersion.valueOf(null);
        });
    }

    @Test
    @DisplayName("Should maintain SMB2 flag consistency")
    void testSMB2FlagConsistency() {
        // SMB1 should not be SMB2
        assertFalse(DialectVersion.SMB1.isSMB2());

        // All other versions should be SMB2
        for (DialectVersion version : DialectVersion.values()) {