1 files changed, 11 insertions, 0 deletions
diff --git a/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java b/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java
index 41d95f045..8c116b351 100644
--- a/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java
+++ b/guava/src/com/google/common/collect/JdkBackedImmutableMultiset.java
@@ -17,6 +17,8 @@ package com.google.common.collect;
 import static com.google.common.base.Preconditions.checkNotNull;
 
 import com.google.common.annotations.GwtCompatible;
+import com.google.common.annotations.GwtIncompatible;
+import com.google.common.annotations.J2ktIncompatible;
 import com.google.common.primitives.Ints;
 import com.google.errorprone.annotations.concurrent.LazyInit;
 import java.util.Collection;
@@ -89,4 +91,13 @@ final class JdkBackedImmutableMultiset<E> extends ImmutableMultiset<E> {
   public int size() {
     return Ints.saturatedCast(size);
   }
+
+  // redeclare to help optimizers with b/310253115
+  @SuppressWarnings("RedundantOverride")
+  @Override
+  @J2ktIncompatible // serialization
+  @GwtIncompatible // serialization
+  Object writeReplace() {
+    return super.writeReplace();
+  }
 }