Add cast since older csv version.

src/main/java/ch/psi/daq/queryrest/response/csv/ArrayProcessor.java

@@ -31,7 +31,6 @@ public class ArrayProcessor extends CellProcessorAdaptor {
       this.separator = separator;
    }
 
-   @SuppressWarnings("unchecked")
    @Override
    public Object execute(Object value, CsvContext context) {
       if (value.getClass().isArray()) {

src/main/java/ch/psi/daq/queryrest/response/csv/CSVResponseStreamWriter.java

@@ -90,7 +90,7 @@ public class CSVResponseStreamWriter implements ResponseStreamWriter {
 
       CellProcessor[] processors = processorSet.toArray(new CellProcessor[processorSet.size()]);
       CsvPreference preference = new CsvPreference.Builder(
-            CsvPreference.EXCEL_NORTH_EUROPE_PREFERENCE.getQuoteChar(),
+            (char) CsvPreference.EXCEL_NORTH_EUROPE_PREFERENCE.getQuoteChar(),
             DELIMITER_CVS,
             CsvPreference.EXCEL_NORTH_EUROPE_PREFERENCE.getEndOfLineSymbols()).build();
       ICsvDozerBeanWriter beanWriter = new CsvDozerBeanWriter(response.getWriter(), preference);