1 files changed, 11 insertions, 0 deletions
diff --git a/guava/src/com/google/common/collect/JdkBackedImmutableSet.java b/guava/src/com/google/common/collect/JdkBackedImmutableSet.java
index c00167713..bee7076fa 100644
--- a/guava/src/com/google/common/collect/JdkBackedImmutableSet.java
+++ b/guava/src/com/google/common/collect/JdkBackedImmutableSet.java
@@ -15,6 +15,8 @@
 package com.google.common.collect;
 
 import com.google.common.annotations.GwtCompatible;
+import com.google.common.annotations.GwtIncompatible;
+import com.google.common.annotations.J2ktIncompatible;
 import java.util.Set;
 import javax.annotation.CheckForNull;
 
@@ -55,4 +57,13 @@ final class JdkBackedImmutableSet<E> extends IndexedImmutableSet<E> {
   public int size() {
     return delegateList.size();
   }
+
+  // redeclare to help optimizers with b/310253115
+  @SuppressWarnings("RedundantOverride")
+  @Override
+  @J2ktIncompatible // serialization
+  @GwtIncompatible // serialization
+  Object writeReplace() {
+    return super.writeReplace();
+  }
 }