LiangliangSui commented on code in PR #2999:
URL: https://github.com/apache/fory/pull/2999#discussion_r2596905205


##########
java/fory-core/src/main/java/org/apache/fory/serializer/collection/CollectionSerializer.java:
##########
@@ -61,7 +61,11 @@ public T copy(T originCollection) {
     if (needToCopyRef) {
       fory.reference(originCollection, newCollection);
     }
-    copyElements(originCollection, newCollection);
+    onCollectionCopy(originCollection, newCollection);
     return (T) newCollection;
   }
+
+  protected void onCollectionCopy(Collection originCollection, Collection 
newCollection) {

Review Comment:
   In the `CollectionSerializer#copy` method, it is a framework. The specific 
logic for the copy operation is different. I don't think it's necessary to 
rewrite the entire logic all over again.
   
   ```java
   public T copy(T originCollection) {
     if (isImmutable()) {
       return originCollection;
     }
     Preconditions.checkArgument(supportCodegenHook);
     Collection newCollection = newCollection(originCollection);
     if (needToCopyRef) {
       fory.reference(originCollection, newCollection);
     }
     copyElements(originCollection, newCollection);
     return (T) newCollection;
   }
   ```



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