added new system task type 23 (3)

src/main/java/es/uv/saic/service/InstanciaTascaService.java

@@ -15,6 +15,8 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 import org.springframework.util.StringUtils;
 
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonMappingException;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 
@@ -333,7 +335,17 @@ public class InstanciaTascaService {
 
 			ObjectMapper mapper = new ObjectMapper();
 
-			JsonNode root = mapper.readTree(it.getTasca().getOpcions());
+			JsonNode root = null;
+			try {
+				root = mapper.readTree(it.getTasca().getOpcions());
+			} catch (JsonMappingException e) {
+				e.printStackTrace();
+				return it;
+			} catch (JsonProcessingException e) {
+				e.printStackTrace();
+				return it;
+			}
+
 			JsonNode actions = root.get("accions");
 
 			List<String> selectedPaths = new ArrayList<>();