presist http upload availibility

1 files changed, 4 insertions, 5 deletions

diff --git a/src/main/java/de/pixart/messenger/xmpp/XmppConnection.java b/src/main/java/de/pixart/messenger/xmpp/XmppConnection.java
index 515f0b3c6..03005b6e3 100644
--- a/src/main/java/de/pixart/messenger/xmpp/XmppConnection.java
+++ b/src/main/java/de/pixart/messenger/xmpp/XmppConnection.java
@@ -37,6 +37,7 @@ import java.util.Iterator;
 import java.util.List;
 import java.util.Map.Entry;
 import java.util.Random;
+import java.util.Set;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -143,8 +144,8 @@ public class XmppConnection implements Runnable {
 	private final HashMap<Jid, ServiceDiscoveryResult> disco = new HashMap<>();
 	private final SparseArray<AbstractAcknowledgeableStanza> mStanzaQueue = new SparseArray<>();
 	private final Hashtable<String, Pair<IqPacket, OnIqPacketReceived>> packetCallbacks = new Hashtable<>();
-	private final ArrayList<OnAdvancedStreamFeaturesLoaded> advancedStreamFeaturesLoadedListeners = new ArrayList<>();
-	private final XmppConnectionService mXmppConnectionService;
+    private final Set<OnAdvancedStreamFeaturesLoaded> advancedStreamFeaturesLoadedListeners = new HashSet<>();
+    private final XmppConnectionService mXmppConnectionService;
     private Socket socket;
     private XmlReader tagReader;
     private TagWriter tagWriter = new TagWriter();
@@ -1462,9 +1463,7 @@ public class XmppConnection implements Runnable {
     }
 
     public void addOnAdvancedStreamFeaturesAvailableListener(final OnAdvancedStreamFeaturesLoaded listener) {
-        if (!this.advancedStreamFeaturesLoadedListeners.contains(listener)) {
-            this.advancedStreamFeaturesLoadedListeners.add(listener);
-        }
+        this.advancedStreamFeaturesLoadedListeners.add(listener);
     }
 
     private void forceCloseSocket() {