Return an unmodifiable copy of the Sones.

diff --git a/src/main/java/net/pterodactylus/sone/core/Core.java b/src/main/java/net/pterodactylus/sone/core/Core.java
index ddca79f..31e2680 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/core/Core.java
+++ b/src/main/java/net/pterodactylus/sone/core/Core.java
@@ -96,7 +96,7 @@ public class Core extends AbstractService {
         * @return The local Sones
         */
        public Set<Sone> localSones() {
-               return localSones;
+               return Collections.unmodifiableSet(localSones);
        }
 
        //