create empty disco result on error to fire advance stream features event

1 files changed, 12 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/entities/ServiceDiscoveryResult.java b/src/main/java/de/pixart/messenger/entities/ServiceDiscoveryResult.java
index 7b7d0f549..50b118cba 100644
--- a/src/main/java/de/pixart/messenger/entities/ServiceDiscoveryResult.java
+++ b/src/main/java/de/pixart/messenger/entities/ServiceDiscoveryResult.java
@@ -85,6 +85,18 @@ public class ServiceDiscoveryResult {
         }
     }
 
+    private ServiceDiscoveryResult() {
+        this.hash = "sha-1";
+        this.features = Collections.emptyList();
+        this.identities = Collections.emptyList();
+        this.ver = null;
+        this.forms = Collections.emptyList();
+    }
+
+    public static ServiceDiscoveryResult empty() {
+        return new ServiceDiscoveryResult();
+    }
+
     public ServiceDiscoveryResult(Cursor cursor) throws JSONException {
         this(
                 cursor.getString(cursor.getColumnIndex(HASH)),