Extract label once.

2 files changed, 3 insertions, 3 deletions

diff --git a/vespajlib/src/main/java/com/yahoo/tensor/TensorAddress.java b/vespajlib/src/main/java/com/yahoo/tensor/TensorAddress.java
index 95a02bb685c..1b88a5d1b2f 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/TensorAddress.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/TensorAddress.java
@@ -9,7 +9,6 @@ import net.jpountz.xxhash.XXHashFactory;
 import java.nio.charset.StandardCharsets;
 import java.util.Arrays;
 import java.util.Objects;
-import java.util.Optional;
 
 /**
  * An immutable address to a tensor cell. This simply supplies a value to each dimension
diff --git a/vespajlib/src/main/java/com/yahoo/tensor/functions/Join.java b/vespajlib/src/main/java/com/yahoo/tensor/functions/Join.java
index 712e5528fc6..fa9dcda9179 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/functions/Join.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/functions/Join.java
@@ -394,8 +394,9 @@ public class Join<NAMETYPE extends Name> extends PrimitiveTensorFunction<NAMETYP
     private static boolean mapContent(TensorAddress from, String[] to, int[] indexMap) {
         for (int i = 0; i < from.size(); i++) {
             int toIndex = indexMap[i];
-            if (to[toIndex] != null && ! to[toIndex].equals(from.label(i))) return false;
-            to[toIndex] = from.label(i);
+            String label = from.label(i);
+            if (to[toIndex] != null && ! to[toIndex].equals(label)) return false;
+            to[toIndex] = label;
         }
         return true;
     }