Nasty error fixed in VersionedMapStoreDeltaImpl.java

when setting the new parent state

1 files changed, 7 insertions, 4 deletions

diff --git a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreDeltaImpl.java b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreDeltaImpl.java
index f41a2d75..31cdbf95 100644
--- a/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreDeltaImpl.java
+++ b/subprojects/store/src/main/java/tools/refinery/store/map/VersionedMapStoreDeltaImpl.java
@@ -50,19 +50,22 @@ public class VersionedMapStoreDeltaImpl<K, V> implements VersionedMapStore<K, V>
         }
 
         public MapTransaction<K, V> getPath(long to, List<MapDelta<K, V>[]> forwardTransactions) {
-                MapTransaction<K, V> toTransaction = getState(to);
+                final MapTransaction<K, V> target = getState(to);
+                MapTransaction<K, V> toTransaction = target;
                 while (toTransaction != null) {
                         forwardTransactions.add(toTransaction.deltas());
                         toTransaction = toTransaction.parent();
                 }
-                return toTransaction;
+                return target;
         }
 
         public MapTransaction<K, V> getPath(long from, long to,
                                                 List<MapDelta<K, V>[]> backwardTransactions,
                                                 List<MapDelta<K, V>[]> forwardTransactions) {
                 MapTransaction<K, V> fromTransaction = getState(from);
-                MapTransaction<K, V> toTransaction = getState(to);
+                final MapTransaction<K, V> target = getState(to);
+                MapTransaction<K, V> toTransaction = target;
+
                 while (fromTransaction != toTransaction) {
                         if (fromTransaction == null || (toTransaction != null && fromTransaction.version() < toTransaction.version())) {
                                 forwardTransactions.add(toTransaction.deltas());
@@ -72,7 +75,7 @@ public class VersionedMapStoreDeltaImpl<K, V> implements VersionedMapStore<K, V>
                                 fromTransaction = fromTransaction.parent();
                         }
                 }
-                return toTransaction;
+                return target;
         }