diff --git a/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImpl.java b/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImpl.java
index 2ee436cd..15686dd0 100644
--- a/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImpl.java
+++ b/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImpl.java
@@ -29,6 +29,7 @@ class JobNeighborhoodsImpl implements JobNeighborhoods {
         logger.info("intialise " + this);
     }
 
+    @Override
     public Iterator<Job> getNearestNeighborsIterator(int nNeighbors, Job neighborTo){
         TreeSet<ReferencedJob> tree = distanceNodeTree.get(neighborTo.getId());
         if(tree == null) return new Iterator<Job>() {
@@ -46,6 +47,7 @@ class JobNeighborhoodsImpl implements JobNeighborhoods {
         return new NearestNeighborhoodIterator(descendingIterator, nNeighbors);
     }
 
+    @Override
     public void initialise(){
         logger.info("calculates and memorizes distances from EACH job to EACH job --> n^2 calculations");
         calculateDistancesFromJob2Job();
diff --git a/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImplWithCapRestriction.java b/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImplWithCapRestriction.java
index 1232458b..b3d507db 100644
--- a/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImplWithCapRestriction.java
+++ b/jsprit-core/src/main/java/jsprit/core/algorithm/ruin/JobNeighborhoodsImplWithCapRestriction.java
@@ -32,9 +32,7 @@ class JobNeighborhoodsImplWithCapRestriction implements JobNeighborhoods {
         logger.info("intialise " + this);
     }
 
-    /*
-    TODO: obviously nearestNeighbor does not work with a single customer
-     */
+    @Override
     public Iterator<Job> getNearestNeighborsIterator(int nNeighbors, Job neighborTo){
         TreeSet<ReferencedJob> tree = distanceNodeTree.get(neighborTo.getId());
         if(tree == null) return new Iterator<Job>() {
@@ -54,6 +52,7 @@ class JobNeighborhoodsImplWithCapRestriction implements JobNeighborhoods {
         return new NearestNeighborhoodIterator(descendingIterator, nNeighbors);
     }
 
+    @Override
     public void initialise(){
         logger.info("calculates distances from EACH job to EACH job --> n^2="+Math.pow(vrp.getJobs().values().size(), 2) + " calculations, but 'only' "+(vrp.getJobs().values().size()*capacity)+ " are cached.");
         if(capacity==0) return;