Non null values

src/main/java/kz/arta/synergy/api/JsonUtils.java

@@ -2,6 +2,7 @@ package kz.arta.synergy.api;
 
 import org.codehaus.jackson.JsonNode;
 import org.codehaus.jackson.map.ObjectMapper;
+import org.codehaus.jackson.map.annotate.JsonSerialize;
 import org.codehaus.jackson.type.TypeReference;
 
 import java.io.IOException;
@@ -14,6 +15,7 @@ public class JsonUtils {
     }
 
     public static String toJson(Object object) throws IOException {
+        MAPPER.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
         return MAPPER.writeValueAsString(object);
     }
 
@@ -26,10 +28,12 @@ public class JsonUtils {
     }
 
     public static <T> T read(String result, Class<T> synResponseClass) throws IOException {
+        MAPPER.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
         return MAPPER.readValue(result, synResponseClass);
     }
 
     public static <T> T read(String result, TypeReference<T> typeReference) throws IOException {
+        MAPPER.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
         return MAPPER.readValue(result, typeReference);
     }
 

src/main/java/kz/arta/synergy/api/asforms/AsFormProvider.java

@@ -86,6 +86,11 @@ public class AsFormProvider {
         try {
             Field[] allFields = asForm.getClass().getDeclaredFields();
             for (Field field : allFields) {
+                field.setAccessible(true);
+                Object o = field.get(asForm);
+                if (o == null) {
+                    continue;
+                }
                 Annotation[] declaredAnnotations = field.getDeclaredAnnotations();
                 for (Annotation annotation : declaredAnnotations) {
                     if (annotation instanceof TextBox) {