// Verification would depend on implementation details
    }

    @Test
    @DisplayName("Should handle multiple close() calls gracefully")
    void testMultipleCloseCallsSafe() {
        // Given
        Smb2EncryptionContext closeableContext = new Smb2EncryptionContext(EncryptionNegotiateContext.CIPHER_AES128_CCM,
                DialectVersion.SMB302, testEncryptionKey, testDecryptionKey);