Source->Cleanup
diff --git a/org.eclipse.sisu.inject/src/org/eclipse/sisu/inject/MildKeys.java b/org.eclipse.sisu.inject/src/org/eclipse/sisu/inject/MildKeys.java
index 6607a1f..377f702 100644
--- a/org.eclipse.sisu.inject/src/org/eclipse/sisu/inject/MildKeys.java
+++ b/org.eclipse.sisu.inject/src/org/eclipse/sisu/inject/MildKeys.java
@@ -307,7 +307,7 @@
         // Implementation fields
         // ----------------------------------------------------------------------
 
-        private Iterator<Reference<K>> itr = map.keySet().iterator();
+        private final Iterator<Reference<K>> itr = map.keySet().iterator();
 
         private K nextKey;
 
@@ -353,7 +353,7 @@
         // Implementation fields
         // ----------------------------------------------------------------------
 
-        private Iterator<Entry<Reference<K>, V>> itr = map.entrySet().iterator();
+        private final Iterator<Entry<Reference<K>, V>> itr = map.entrySet().iterator();
 
         private Entry<Reference<K>, V> nextEntry;
 
diff --git a/org.eclipse.sisu.inject/src/org/eclipse/sisu/inject/MildValues.java b/org.eclipse.sisu.inject/src/org/eclipse/sisu/inject/MildValues.java
index f9df550..652064e 100644
--- a/org.eclipse.sisu.inject/src/org/eclipse/sisu/inject/MildValues.java
+++ b/org.eclipse.sisu.inject/src/org/eclipse/sisu/inject/MildValues.java
@@ -290,7 +290,7 @@
         // Implementation fields
         // ----------------------------------------------------------------------
 
-        private Iterator<Reference<V>> itr = map.values().iterator();
+        private final Iterator<Reference<V>> itr = map.values().iterator();
 
         private V nextValue;
 
@@ -336,7 +336,7 @@
         // Implementation fields
         // ----------------------------------------------------------------------
 
-        private Iterator<Entry<K, Reference<V>>> itr = map.entrySet().iterator();
+        private final Iterator<Entry<K, Reference<V>>> itr = map.entrySet().iterator();
 
         private Entry<K, Reference<V>> nextEntry;