exclude argument from debug event if empty

application/src/main/java/org/thingsboard/server/actors/ActorSystemContext.java

@@ -846,7 +846,7 @@ public class ActorSystemContext {
                 if (tbMsgType != null) {
                     eventBuilder.msgType(tbMsgType);
                 }
-                if (arguments != null) {
+                if (arguments != null && !arguments.isEmpty()) {
                     eventBuilder.arguments(JacksonUtil.toString(arguments));
                 }
                 if (result != null) {

application/src/main/java/org/thingsboard/server/service/cf/ctx/state/BaseCalculatedFieldState.java

@@ -201,7 +201,9 @@ public abstract class BaseCalculatedFieldState implements CalculatedFieldState,
     @Override
     public JsonNode getArgumentsJson() {
         return JacksonUtil.valueToTree(arguments.entrySet().stream()
-                .collect(Collectors.toMap(Map.Entry::getKey, e -> e.getValue().jsonValue())));
+                .filter(entry -> !entry.getValue().isEmpty())
+                .collect(Collectors.toMap(Map.Entry::getKey, e -> e.getValue().jsonValue()))
+        );
     }
 
 }