diff --git a/spring-data-neo4j-examples/hello-worlds/src/main/java/org/springframework/data/neo4j/examples/hellograph/GalaxyService.java b/spring-data-neo4j-examples/hello-worlds/src/main/java/org/springframework/data/neo4j/examples/hellograph/GalaxyService.java
index e3a2967c2..f3e68837e 100644
--- a/spring-data-neo4j-examples/hello-worlds/src/main/java/org/springframework/data/neo4j/examples/hellograph/GalaxyService.java
+++ b/spring-data-neo4j-examples/hello-worlds/src/main/java/org/springframework/data/neo4j/examples/hellograph/GalaxyService.java
@@ -24,7 +24,6 @@ public class GalaxyService {
         World mars = resolveWorld("Mars", 2);        
         mars.addRocketRouteTo(earth);
         worldRepository.save(mars);
-        /*worldRepository.save(earth);*/
         
         resolveWorld("Jupiter", 63);
         resolveWorld("Saturn", 62);
@@ -43,7 +42,7 @@ public class GalaxyService {
     	World createdWorld = worldRepository.findByPropertyValue("name", name);
     	if (createdWorld == null) {
     		createdWorld = new World(name, moons);
-    		createdWorld = worldRepository.save(createdWorld);
+    		createdWorld = worldRepository.save(createdWorld);    		 
     	}
     	
     	return createdWorld;
diff --git a/spring-data-neo4j-examples/hello-worlds/src/main/java/org/springframework/data/neo4j/examples/hellograph/World.java b/spring-data-neo4j-examples/hello-worlds/src/main/java/org/springframework/data/neo4j/examples/hellograph/World.java
index 5c125e1d6..169573988 100644
--- a/spring-data-neo4j-examples/hello-worlds/src/main/java/org/springframework/data/neo4j/examples/hellograph/World.java
+++ b/spring-data-neo4j-examples/hello-worlds/src/main/java/org/springframework/data/neo4j/examples/hellograph/World.java
@@ -6,7 +6,6 @@ import org.springframework.data.neo4j.annotation.GraphId;
 import org.springframework.data.neo4j.annotation.Indexed;
 import org.springframework.data.neo4j.annotation.NodeEntity;
 import org.springframework.data.neo4j.annotation.RelatedTo;
-import java.util.HashSet;
 import java.util.Set;
 
 @NodeEntity
@@ -21,7 +20,7 @@ public class World {
 
     @Fetch
     @RelatedTo(type = RelationshipTypes.REACHABLE_BY_ROCKET, direction = Direction.BOTH)
-    private Set<World> reachableByRocket = new HashSet<World>();
+    private Set<World> reachableByRocket;
 
     public World(String name, int moons) {
         this.name = name;