fix library

pom.xml

@@ -204,9 +204,16 @@
         <dependency>
             <groupId>net.sf.json-lib</groupId>
             <artifactId>json-lib</artifactId>
-            <version>2.3</version>
+            <version>2.4</version>
             <classifier>jdk15</classifier>
         </dependency>
+        <dependency>
+            <groupId>commons-collections</groupId>
+            <artifactId>commons-collections</artifactId>
+            <version>3.2.2</version>
+        </dependency>
+
+
 
         <dependency>
             <groupId>org.jfree</groupId>

src/main/java/cz/hsrs/servlet/feeder/FeederServlet.java

@@ -156,7 +156,7 @@ public class FeederServlet extends javax.servlet.http.HttpServlet implements jav
     }
 
     protected boolean insObservation(HttpServletRequest request) throws SQLException, ParseException {
-        double value = Double.parseDouble(request.getParameter(ServiceParameters.VALUE));
+        Double value = Double.parseDouble(request.getParameter(ServiceParameters.VALUE));
         String time = request.getParameter(ServiceParameters.DATE);
         long unit_id = Long.parseLong(request.getParameter(ServiceParameters.UNIT_ID));
         long sensor_id = Long.parseLong(request.getParameter(ServiceParameters.SENSOR_ID));