byte[] buffer = new byte[100];
        validator.validateBufferAccess(buffer, 10, 20);
        // Should pass without exception
    }

    @Test
    public void testBufferAccessNullBuffer() throws Exception {
        assertThrows(SmbException.class, () -> {
            validator.validateBufferAccess(null, 0, 10);
        });
    }

    @Test