1 files changed, 16 insertions, 17 deletions
diff --git a/src/main/java/org/traccar/api/resource/NotificationResource.java b/src/main/java/org/traccar/api/resource/NotificationResource.java
index a42de687d..2e4ad12f3 100644
--- a/src/main/java/org/traccar/api/resource/NotificationResource.java
+++ b/src/main/java/org/traccar/api/resource/NotificationResource.java
@@ -15,22 +15,6 @@
  */
 package org.traccar.api.resource;
 
-import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Set;
-
-import javax.inject.Inject;
-import javax.ws.rs.Consumes;
-import javax.ws.rs.GET;
-import javax.ws.rs.POST;
-import javax.ws.rs.Path;
-import javax.ws.rs.PathParam;
-import javax.ws.rs.Produces;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.traccar.api.ExtendedObjectResource;
@@ -42,6 +26,21 @@ import org.traccar.notification.MessageException;
 import org.traccar.notification.NotificatorManager;
 import org.traccar.storage.StorageException;
 
+import javax.inject.Inject;
+import javax.ws.rs.Consumes;
+import javax.ws.rs.GET;
+import javax.ws.rs.POST;
+import javax.ws.rs.Path;
+import javax.ws.rs.PathParam;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+
 @Path("notifications")
 @Produces(MediaType.APPLICATION_JSON)
 @Consumes(MediaType.APPLICATION_JSON)
@@ -59,7 +58,7 @@ public class NotificationResource extends ExtendedObjectResource<Notification> {
     @GET
     @Path("types")
     public Collection<Typed> get() {
-        Set<Typed> types = new HashSet<>();
+        List<Typed> types = new LinkedList<>();
         Field[] fields = Event.class.getDeclaredFields();
         for (Field field : fields) {
             if (Modifier.isStatic(field.getModifiers()) && field.getName().startsWith("TYPE_")) {