1 files changed, 6 insertions, 7 deletions

diff --git a/model-data/src/main/java/org/eclipse/viatra/solver/data/map/internal/VersionedMapImpl.java b/model-data/src/main/java/org/eclipse/viatra/solver/data/map/internal/VersionedMapImpl.java
index d04e7117..25473fd8 100644
--- a/model-data/src/main/java/org/eclipse/viatra/solver/data/map/internal/VersionedMapImpl.java
+++ b/model-data/src/main/java/org/eclipse/viatra/solver/data/map/internal/VersionedMapImpl.java
@@ -20,13 +20,13 @@ import org.eclipse.viatra.solver.data.map.VersionedMapStoreImpl;
 public class VersionedMapImpl<K,V> implements VersionedMap<K,V>{
         protected final VersionedMapStoreImpl<K,V> store;
         
-        protected final ContinousHashProvider<? super K> hashProvider;
+        protected final ContinousHashProvider<K> hashProvider;
         protected final V defaultValue;
         protected Node<K,V> root;
         
         public VersionedMapImpl(
                         VersionedMapStoreImpl<K,V> store,
-                        ContinousHashProvider<? super K> hashProvider,
+                        ContinousHashProvider<K> hashProvider,
                         V defaultValue)
         {
                 this.store = store;
@@ -36,7 +36,7 @@ public class VersionedMapImpl<K,V> implements VersionedMap<K,V>{
         }
         public VersionedMapImpl(
                         VersionedMapStoreImpl<K,V> store,
-                        ContinousHashProvider<? super K> hashProvider,
+                        ContinousHashProvider<K> hashProvider,
                         V defaultValue, Node<K,V> data)
         {
                 this.store = store;
@@ -48,7 +48,7 @@ public class VersionedMapImpl<K,V> implements VersionedMap<K,V>{
         public V getDefaultValue() {
                 return defaultValue;
         }
-        public ContinousHashProvider<? super K> getHashProvider() {
+        public ContinousHashProvider<K> getHashProvider() {
                 return hashProvider;
         }
         @Override
@@ -100,15 +100,14 @@ public class VersionedMapImpl<K,V> implements VersionedMap<K,V>{
 
         @Override
         public Cursor<K, V> getCursor() {
-                MapCursor<K,V> cursor = new MapCursor<>(this.root,this);
-                return cursor;
+                return new MapCursor<>(this.root,this);
         }
         @Override
         public DiffCursor<K, V> getDiffCursor(long toVersion) {
                 Cursor<K, V> fromCursor = this.getCursor();
                 VersionedMap<K, V> toMap = this.store.createMap(toVersion);
                 Cursor<K, V> toCursor = toMap.getCursor();
-                return new MapDiffCursor<K, V>(this.hashProvider,this.defaultValue, fromCursor, toCursor);
+                return new MapDiffCursor<>(this.hashProvider,this.defaultValue, fromCursor, toCursor);
                 
         }