Reading a json file from ECS location and transforming it into list of Object?

I am currently reading a json file from s3 location using the below code and then printing the data.

Json File

[
 {
   "name": "A",
   "lastName" : "B"
 },
 {
   "name": "C",
   "lastName" : "D"
 }
]

Reading data from s3

AwsBasicCredentials awsSourceBasicCredentials = AwsBasicCredentials.create(accessKey, secretKey);
URI sourceUrl = new URI(ep);
S3Client  s3Client= S3Client.builder()
         .credentialsProvider(StaticCredentialsProvider.create(awsSourceBasicCredentials))
         .region(Region.AWS_GLOBAL)
         .endpointOverride(sourceUrl)
         .build();
ResponseInputStream object = s3Client.getObject(request -> request
                                .bucket(bucketName)
                                .key(key));

This ResponseInputStram I am priniting.

Say suppose I have a Name Object. Name.class

class Name
{
 String name;
 String lastName;
}

Is there a way that instead of printing I can create a List<Name>?

So if you just want to read the JSON file and bind that into a Java object you can use Jackson for that:

try( var res = s3Client.getObject(request -> request
                                .bucket(bucketName)
                                .key(key)) ) {
   Reader reader = new InputStreamReader( res, res.response().contentType() );   
   List<Name> names = objectMapper.readValue(reader, new TypeReference<List<Name>>(){});
}

And remember to add the dependency to your build environment:

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.18.3</version>
</dependency>

Or

// https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core
implementation("com.fasterxml.jackson.core:jackson-core:2.18.3")