public DuplicateCheckRow createDuplicateCheckRow(final ByteBuffer valBuffer) {
        final List<String> values = new ArrayList<>();
        try (final Input input = new ByteBufferInput(valBuffer)) {
            while (!input.end()) {
                final String value = input.readString();
                values.add(value);
            }
        }
        return new DuplicateCheckRow(values);
    }
Allow this to be overridden for testing with a simpler hash algo
stroom-analytics/stroom-analytics-impl/src/main/java/stroom/analytics/impl/DuplicateCheckRowSerde.java