fixed FeaturesInfo class, added ability to manually set json property order

application/src/main/java/org/thingsboard/server/config/SwaggerConfiguration.java

@@ -15,6 +15,7 @@
  */
 package org.thingsboard.server.config;
 
+import com.fasterxml.jackson.annotation.JsonPropertyOrder;
 import com.fasterxml.jackson.databind.JavaType;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.node.ObjectNode;
@@ -817,6 +818,22 @@ public class SwaggerConfiguration {
     }
 
     private static List<String> resolvePropertyOrder(Class<?> cls, com.fasterxml.jackson.databind.BeanDescription beanDesc) {
+        // If an explicit @JsonPropertyOrder is present on the class or any directly implemented
+        // interface, honour it directly. Walk up the hierarchy so annotations on superclasses
+        // and their interfaces are also found.
+        for (Class<?> c = cls; c != null && c != Object.class; c = c.getSuperclass()) {
+            JsonPropertyOrder propOrder = c.getAnnotation(JsonPropertyOrder.class);
+            if (propOrder != null && !propOrder.alphabetic() && propOrder.value().length > 0) {
+                return Arrays.asList(propOrder.value());
+            }
+            for (Class<?> iface : c.getInterfaces()) {
+                propOrder = iface.getAnnotation(JsonPropertyOrder.class);
+                if (propOrder != null && !propOrder.alphabetic() && propOrder.value().length > 0) {
+                    return Arrays.asList(propOrder.value());
+                }
+            }
+        }
+
         // Map backing field names to their JSON property names (respects @JsonProperty)
         Map<String, String> fieldToJsonName = new LinkedHashMap<>();
         LinkedHashSet<String> getterOnlyNames = new LinkedHashSet<>();

common/data/src/main/java/org/thingsboard/server/common/data/FeaturesInfo.java

@@ -19,9 +19,9 @@ import lombok.Data;
 
 @Data
 public class FeaturesInfo {
-    boolean isEmailEnabled;
-    boolean isSmsEnabled;
-    boolean isNotificationEnabled;
-    boolean isOauthEnabled;
-    boolean isTwoFaEnabled;
+    boolean emailEnabled;
+    boolean smsEnabled;
+    boolean notificationEnabled;
+    boolean oauthEnabled;
+    boolean twoFaEnabled;
 }