Method updateMethod = findMethod(transport.getClass(), "updatePreauthHash", byte[].class);
        updateMethod.setAccessible(true);

        byte[] testData = new byte[64];

        assertThrows(Exception.class, () -> {
            updateMethod.invoke(transport, testData);
        });

        // Verify hash was reset
        Method resetMethod = findMethod(transport.getClass(), "resetPreauthHash");