Return unmodifiable view of packs

[xudocci.git] / src / main / java / net / pterodactylus / xdcc / data / Bot.java

diff --git a/src/main/java/net/pterodactylus/xdcc/data/Bot.java b/src/main/java/net/pterodactylus/xdcc/data/Bot.java
index 3ca34f3..c9e2a9b 100644 (file)
--- a/src/main/java/net/pterodactylus/xdcc/data/Bot.java
+++ b/src/main/java/net/pterodactylus/xdcc/data/Bot.java
@@ -20,6 +20,7 @@ package net.pterodactylus.xdcc.data;
 import static com.google.common.base.Preconditions.checkNotNull;
 
 import java.util.Collection;
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.Map;
 
@@ -82,7 +83,9 @@ public class Bot implements Iterable<Pack> {
         * @return The packs this bot carries
         */
        public Collection<Pack> packs() {
-               return packs.values();
+               synchronized (packs) {
+                       return Collections.unmodifiableCollection(packs.values());
+               }
        }
 
        //
@@ -128,7 +131,7 @@ public class Bot implements Iterable<Pack> {
 
        @Override
        public Iterator<Pack> iterator() {
-               return packs.values().iterator();
+               return packs().iterator();
        }
 
        //