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CalRamCalRam 

Apex error - Illegal conversion from List<Object> to List<ContentssArray>

global with sharing class GetObjectsAWS{
 
    @AuraEnabled

    public static List<ContentssArray> GetObject(){
   String jsonResponse = XMLParser.xmlToJson(res.getBody());
       // String json ='Contents:{"Key": "my-third-image.jpg", "LastModified": "2009-10-12T17:50:30.000Z", "ETag": "\"1b2cf535f27731c974343645a3985328\"", "Size": "64994", "StorageClass": "STANDARD_IA", "Owner": {"ID": "75aa57f09aa0c8caeab4f8c24e99d10f8e7faeebf76c078efc7c6caea54ba06a", "DisplayName": "mtd@amazon.com"}}';
        system.debug('+++++Body is'+jsonResponse);
      
        Map<String,Object> jsonParsed =(Map<String,Object> ) JSON.deserializeUntyped(jsonResponse);
        Map<String,Object> content_collection = ( Map<String,Object>) jsonParsed.get('ListBucketResult');
        List<Object> ContentssArray =( List<Object> ) content_collection.get('Contents');
        
        for(Object inidividualEntries : ContentssArray){
            Map<String,Object> ind = (Map<String,Object> )inidividualEntries;
            System.debug('Key = '+ ind.get('Key'));
            System.debug('Size = '+ ind.get('Size'));
             
            System.debug('---------------------------------------------');
        }

   return ContentssArray;

    }
Trying to dispay the JSON response in the lightnign component. Hence returning LIST in the apex controller. But getting below errors:
Invalid type: ContentssArray
Illegal conversion from List<Object> to List<ContentssArray>
Thanks In Advance
Andrew GAndrew G
First, your naming convention for variables is not good.

I assume you have an Object called ContentssArray  based on line 5 public static List<ContentssArray> GetObject()

You then use the exact same capitalisation in your List declaration at Line 12  List<Object> ContentssArray

Makes it confusing.  Yes, I know we do Account account = new Account();  but notice the capitalisation to help differentiate.

Now, to your error.  It relates to the two lines mentioned.  Your method is expecting to return a List of <ContentssArray> records, but you have are returning the variable ContentssArray which you have declared as a list of <Object>

You will have to change either the type of List that the method is expecting to return, or cast from Object to ContentssArray at some stage.  Line 12 looks a likely candidate.

Regards
Andrew