bbc923
@@ -323,6 +323,12 @@
public class JmsEndpoint extends DefaultEndpoint implements HeaderFilterStrategy
 
     @ManagedAttribute
     public boolean isSingleton() {
+        if (isPubSubDomain()) {
+            // topic cannot be singleton, as there may be multiple consumers
+            // on the same topic
+            return false;
+        }
+        // but queues can be singleton
         return true;
     }
 
