1 files changed, 9 insertions, 0 deletions
diff --git a/guava/src/com/google/common/collect/ImmutableMapKeySet.java b/guava/src/com/google/common/collect/ImmutableMapKeySet.java
index 6d1b51671..fb2661f47 100644
--- a/guava/src/com/google/common/collect/ImmutableMapKeySet.java
+++ b/guava/src/com/google/common/collect/ImmutableMapKeySet.java
@@ -77,6 +77,15 @@ final class ImmutableMapKeySet<K, V> extends IndexedImmutableSet<K> {
     return true;
   }
 
+  // redeclare to help optimizers with b/310253115
+  @SuppressWarnings("RedundantOverride")
+  @Override
+  @J2ktIncompatible // serialization
+  @GwtIncompatible // serialization
+  Object writeReplace() {
+    return super.writeReplace();
+  }
+
   // No longer used for new writes, but kept so that old data can still be read.
   @GwtIncompatible // serialization
   @J2ktIncompatible