From 0788c7c623348a25dd5604d5c84dbdfe22010825 Mon Sep 17 00:00:00 2001
From: Nickita Khylkouski
 <90287684+nickita-khylkouski@users.noreply.github.com>
Date: Tue, 27 Jan 2026 00:07:18 -0800
Subject: [PATCH] ImmutableBiMap: Mark GWT inverse field as transient for
 GWT-RPC

The inverse field in GWT's RegularImmutableBiMap was not marked as
transient, causing GWT-RPC serialization warnings about circular
references. This aligns the GWT version with the main guava and
android versions, which already have transient on this field.

Fixes #8168
---
 .../super/com/google/common/collect/RegularImmutableBiMap.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guava-gwt/src-super/com/google/common/collect/super/com/google/common/collect/RegularImmutableBiMap.java b/guava-gwt/src-super/com/google/common/collect/super/com/google/common/collect/RegularImmutableBiMap.java
index 0afe66004da9..0dfb2fc63d86 100644
--- a/guava-gwt/src-super/com/google/common/collect/super/com/google/common/collect/RegularImmutableBiMap.java
+++ b/guava-gwt/src-super/com/google/common/collect/super/com/google/common/collect/RegularImmutableBiMap.java
@@ -29,7 +29,7 @@ final class RegularImmutableBiMap<K, V> extends ImmutableBiMap<K, V> {
   static final RegularImmutableBiMap<Object, Object> EMPTY =
       new RegularImmutableBiMap<Object, Object>();
 
-  private final ImmutableBiMap<V, K> inverse;
+  private final transient ImmutableBiMap<V, K> inverse;
 
   @SuppressWarnings("unchecked") // used only for the empty map, which works for any types
   RegularImmutableBiMap() {