diff --git a/list/.idea/vcs.xml b/list/.idea/vcs.xml
index 94a25f7..288b36b 100644
--- a/list/.idea/vcs.xml
+++ b/list/.idea/vcs.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
     <mapping directory="$PROJECT_DIR$" vcs="Git" />
   </component>
 </project>
\ No newline at end of file
diff --git a/list/src/main/java/de/vivi/list/Main.java b/list/src/main/java/de/vivi/list/Main.java
index 2d7d6ff..01e2ff7 100644
--- a/list/src/main/java/de/vivi/list/Main.java
+++ b/list/src/main/java/de/vivi/list/Main.java
@@ -32,8 +32,8 @@ public class Main {
         list.remove(3);
 
         // set the element at the specified index
-        list.set(1, 43);
-        list.set(0, 8);
+        list.set(1, (byte) 43);
+        list.set(0, (byte) 8);
 
         // get the element at the specified index
         list.get(2);