@Override
    @Nullable
    public char[] readCharArray(@Nonnull String fieldName) throws IOException {
        return readIncompatibleField(fieldName, CHAR_ARRAY, super::readCharArray);
    }
@Test(expected = IncompatibleClassChangeError.class)
    public void testReadCharArray_IncompatibleClass() throws Exception {
        reader.readCharArray("byte");
    }