Return a copy of the values.

diff --git a/src/main/java/net/pterodactylus/sone/core/Core.java b/src/main/java/net/pterodactylus/sone/core/Core.java
index 7232b72..827729c 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/core/Core.java
+++ b/src/main/java/net/pterodactylus/sone/core/Core.java
@@ -334,7 +334,7 @@ public class Core extends AbstractService implements SoneProvider, PostProvider,
        @Override
        public Collection<Sone> getSones() {
                synchronized (sones) {
-                       return Collections.unmodifiableCollection(sones.values());
+                       return ImmutableSet.copyOf(sones.values());
                }
        }