// ## Arrange ##
        final ResultData resultData = new ResultData();
        final Object rawData = new Object();

        // ## Act ##
        resultData.setRawData(rawData);

        // ## Assert ##
        assertEquals(rawData, resultData.getRawData());

        assertNull(resultData.serializer);
        try {
            resultData.getData();
            fail();
        } catch (CrawlerSystemException e) {