Serialization/deserialization issue fixed for good

src/main/java/no/nibio/vips/model/psilarosaetempmodel/PsilaRosaeTempModel.java

@@ -223,8 +223,6 @@ public class PsilaRosaeTempModel extends I18nImpl implements Model {
         // Init data matrix
         this.dataMatrix = new DataMatrix();
         
-        ObjectMapper mapper = new ObjectMapper();
-        
         // Setting timezone
         this.timeZone = TimeZone.getTimeZone((String) config.getConfigParameter("timeZone"));
         //System.out.println("TimeZone=" + this.timeZone);
@@ -232,7 +230,12 @@ public class PsilaRosaeTempModel extends I18nImpl implements Model {
         // Importing weather data, creating collections
         // Can accept both hourly and daily data
         WeatherUtil wUtil = new WeatherUtil();
-        List<WeatherObservation> observations = mapper.convertValue(config.getConfigParameter("observations"), new TypeReference<List<WeatherObservation>>(){});
+        
+        List<WeatherObservation> observations = modelUtil.extractWeatherObservationList(config.getConfigParameter("observations"));
+        if(observations ==  null || observations.isEmpty())
+        {
+            throw new ConfigValidationException("Please provide weather data.");
+        }
         for(WeatherObservation o:observations)
         {
             switch(o.getElementMeasurementTypeId())