From 112f589be7527bf5aff07ec984e054b1a96bbe9e Mon Sep 17 00:00:00 2001
From: Mattie Fu <mattiefu@google.com>
Date: Fri, 30 Jul 2021 16:31:08 +0000
Subject: [PATCH] make variable final

---
 .../com/google/api/gax/rpc/internal/ApiCallCustomContexts.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gax/src/main/java/com/google/api/gax/rpc/internal/ApiCallCustomContexts.java b/gax/src/main/java/com/google/api/gax/rpc/internal/ApiCallCustomContexts.java
index 002f968287..a054d804bf 100644
--- a/gax/src/main/java/com/google/api/gax/rpc/internal/ApiCallCustomContexts.java
+++ b/gax/src/main/java/com/google/api/gax/rpc/internal/ApiCallCustomContexts.java
@@ -39,7 +39,7 @@
 @InternalApi
 public final class ApiCallCustomContexts {
 
-  private ImmutableMap<Key, Object> customContexts;
+  private final ImmutableMap<Key, Object> customContexts;
 
   private ApiCallCustomContexts(ImmutableMap<Key, Object> contexts) {
     this.customContexts = Preconditions.checkNotNull(contexts);