Add exception-throwing readObject to classes using the serial-proxy pattern.

See _Effective Java_, 3rd edition, Item 90.

RELNOTES=Classes with "serial proxies" acquire exception-throwing `readObject` methods, in accordance with best practice.
PiperOrigin-RevId: 451001736

Author: eamonnmcmanus

android/guava/src/com/google/common/cache/LocalCache.java

@@ -54,6 +54,7 @@
 import com.google.j2objc.annotations.RetainedWith;
 import com.google.j2objc.annotations.Weak;
 import java.io.IOException;
+import java.io.InvalidObjectException;
 import java.io.ObjectInputStream;
 import java.io.Serializable;
 import java.lang.ref.Reference;
@@ -4748,6 +4749,10 @@ public void cleanUp() {
     Object writeReplace() {
       return new ManualSerializationProxy<>(localCache);
     }
+
+    private void readObject(ObjectInputStream in) throws InvalidObjectException {
+      throw new InvalidObjectException("Use ManualSerializationProxy");
+    }
   }
 
   static class LocalLoadingCache<K, V> extends LocalManualCache<K, V>
@@ -4797,5 +4802,9 @@ public final V apply(K key) {
     Object writeReplace() {
       return new LoadingSerializationProxy<>(localCache);
     }
+
+    private void readObject(ObjectInputStream in) throws InvalidObjectException {
+      throw new InvalidObjectException("Use LoadingSerializationProxy");
+    }
   }
 }

android/guava/src/com/google/common/collect/EmptyContiguousSet.java

@@ -15,6 +15,8 @@
 
 import com.google.common.annotations.GwtCompatible;
 import com.google.common.annotations.GwtIncompatible;
+import java.io.InvalidObjectException;
+import java.io.ObjectInputStream;
 import java.io.Serializable;
 import java.util.NoSuchElementException;
 import java.util.Set;
@@ -162,6 +164,11 @@ Object writeReplace() {
     return new SerializedForm<>(domain);
   }
 
+  @GwtIncompatible // serialization
+  private void readObject(ObjectInputStream stream) throws InvalidObjectException {
+    throw new InvalidObjectException("Use SerializedForm");
+  }
+
   @GwtIncompatible // NavigableSet
   @Override
   ImmutableSortedSet<C> createDescendingSet() {