From 0bb3bf292c051181fae272e1a0b5b97f3dc5dbaa Mon Sep 17 00:00:00 2001
From: Florian Schmaus <flo@geekplace.eu>
Date: Sat, 22 Jun 2024 20:01:19 +0200
Subject: [PATCH] [core] Add NotFilter.of(Class<E extends ExtensionElement>)

---
 .../java/org/jivesoftware/smack/filter/NotFilter.java     | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/smack-core/src/main/java/org/jivesoftware/smack/filter/NotFilter.java b/smack-core/src/main/java/org/jivesoftware/smack/filter/NotFilter.java
index 006b5f4f9..5589b2109 100644
--- a/smack-core/src/main/java/org/jivesoftware/smack/filter/NotFilter.java
+++ b/smack-core/src/main/java/org/jivesoftware/smack/filter/NotFilter.java
@@ -1,6 +1,6 @@
 /**
  *
- * Copyright 2003-2007 Jive Software.
+ * Copyright 2003-2007 Jive Software, 2024 Florian Schmaus.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -17,6 +17,7 @@
 
 package org.jivesoftware.smack.filter;
 
+import org.jivesoftware.smack.packet.ExtensionElement;
 import org.jivesoftware.smack.packet.Stanza;
 import org.jivesoftware.smack.util.Objects;
 
@@ -43,4 +44,9 @@ public class NotFilter implements StanzaFilter {
     public boolean accept(Stanza packet) {
         return !filter.accept(packet);
     }
+
+    public static <E extends ExtensionElement> NotFilter of(Class<E> extensionElementClass) {
+        ExtensionElementFilter<E> extensionElementFilter = new ExtensionElementFilter<>(extensionElementClass);
+        return new NotFilter(extensionElementFilter);
+    }
 }