java - Is there a way to map a Set to a List with BeanUtils.copyProperties? -

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I'm using BeanUtils.copyProperties to convert two beans

Beanutils. Copproperties (organization, deto organization);

I have to do a list in one bean and set one to in the other.

First Been: 

  Public Category Form {Private Set & lt; Organization & gt; Organization; }

Second bean: 

  Public final category DTOForm {Private list & lt; DTOOrganization & gt; Organization; }

The result is an exception as described here:

Is it possible to optimize BeanUtils.copyProperties ?

You can solve it by using custom converters. The main idea is that set <

ListEntity, which has list

/ Code> Property (as far as I do not ignore the setters and gates): 

  Public Class List {Private list & lt; Integer & gt; Col = new arreelist & lt; & Gt; (); Public listing & lt; Integer & gt; GetCol () {Return Colonel; } Public Zero Set Call (list & gt; integer & gt; col) {this.col = col; Set}}  SetEntity, which has  set  property:  
 
  public class SetEntity {private set} & Lt; Integer & gt; Col = new hashset & lt; & Gt; (); Public set & lt; Integer & gt; GetCol () {Return Colonel; } Public Zero Set Call (set & lt; integer & gt; col) {this.col = col; }}  
 
  Simple test class to work:  
 
  public class exam {public static zero major (string. Ars.) Throws InvocationTargetException, IllegalAccessException {SetEntity se = New SetEntity (); Se.getCol () add (1). Se.getCol () add (2). ListEntity le = New ListEntity (); ConvertUtility Register (new converter) {@ Override public & lt; T & gt; T convert (class  tClass, object o) {list list = new arreelist & lt; & Gt; (); Iterator = ((set) o). Iterator (); While (this haas next ()) {list.add (it.next ());} return (t) list;}}, list Class); BeanUtils.copyProperties (from, to); Println (. Se.getCol () toString ()); Println (. Le.getCol () toString ()); }}  
 
 The main idea of ​​this code sniper: We register converter for all the destination class  List  properties, this is some object  o  To  list . Assuming that  o  is a collection, we repeat it and then return the newly created list. 
 
 As a result, both  1  and  2  in  le  If you do not need this converter anymore, You can unregister by using

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