From f6ff54b4b397a6ab9a31e39ac68bd85d011dbd0a Mon Sep 17 00:00:00 2001
From: Alessandro Patti <ale812@yahoo.it>
Date: Sun, 21 Aug 2022 12:34:03 +0200
Subject: [PATCH] Dict

---
 .../java/com/google/devtools/build/lib/packages/Type.java    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/google/devtools/build/lib/packages/Type.java b/src/main/java/com/google/devtools/build/lib/packages/Type.java
index ec42532b08a8e5..ca71c8ef734dd5 100644
--- a/src/main/java/com/google/devtools/build/lib/packages/Type.java
+++ b/src/main/java/com/google/devtools/build/lib/packages/Type.java
@@ -34,6 +34,7 @@
 import java.util.Set;
 import java.util.logging.Level;
 import javax.annotation.Nullable;
+import net.starlark.java.eval.Dict;
 import net.starlark.java.eval.EvalException;
 import net.starlark.java.eval.Printer;
 import net.starlark.java.eval.Sequence;
@@ -570,11 +571,11 @@ public Map<KeyT, ValueT> convert(Object x, Object what, LabelConverter labelConv
 
     @Override
     public Map<KeyT, ValueT> concat(Iterable<Map<KeyT, ValueT>> iterable) {
-      ImmutableMap.Builder<KeyT, ValueT> output = new ImmutableMap.Builder<>();
+      Dict.Builder<KeyT, ValueT> output = new Dict.Builder<>();
       for (Map<KeyT, ValueT> map: iterable){
         output.putAll(map);
       }
-      return output.buildKeepingLast();
+      return output.buildImmutable();
     }
 
     @Override