Index: trunk/quest-plugin-guitar/src/main/java/de/ugoe/cs/quest/plugin/guitar/GUITARPlugin.java
===================================================================
--- trunk/quest-plugin-guitar/src/main/java/de/ugoe/cs/quest/plugin/guitar/GUITARPlugin.java	(revision 766)
+++ trunk/quest-plugin-guitar/src/main/java/de/ugoe/cs/quest/plugin/guitar/GUITARPlugin.java	(revision 772)
@@ -1,3 +1,7 @@
 package de.ugoe.cs.quest.plugin.guitar;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
 
 import de.ugoe.cs.quest.plugin.QuestPlugin;
@@ -36,6 +40,6 @@
 	 */
 	@Override
-	public String[] getCommandPackages() {
-		return commandPackages;
+	public List<String> getCommandPackages() {
+		return Collections.unmodifiableList(Arrays.asList(commandPackages));
 	}