AmazonS3Client(credentials) is deprecated

I'm trying to read the files available on Amazon S3, as the question explains the problem. I couldn't find an alternative call for the deprecated constructor.

Here's the code:

private String AccessKeyID = "xxxxxxxxxxxxxxxxxxxx";
private String SecretAccessKey = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
private static String bucketName     = "documentcontainer";
private static String keyName     = "test";
//private static String uploadFileName    = "/PATH TO FILE WHICH WANT TO UPLOAD/abc.txt";

AWSCredentials credentials = new BasicAWSCredentials(AccessKeyID, SecretAccessKey);

void downloadfile() throws IOException
{

    // Problem lies here - AmazonS3Client is deprecated
    AmazonS3 s3client = new AmazonS3Client(credentials);
        try {
        System.out.println("Downloading an object...");
        S3Object s3object = s3client.getObject(new GetObjectRequest(
                bucketName, keyName));
        System.out.println("Content-Type: "  +
                s3object.getObjectMetadata().getContentType());
        InputStream input = s3object.getObjectContent();

        BufferedReader reader = new BufferedReader(new InputStreamReader(input));
        while (true) {
            String line = reader.readLine();
            if (line == null) break;

            System.out.println("    " + line);
        }
        System.out.println();
    } catch (AmazonServiceException ase) {
          //do something
    } catch (AmazonClientException ace) {
        // do something
    }
 }

Any help? If more explanation is needed please mention it. I have checked on the sample code provided in .zip file of SDK, and it's the same.

You can either use AmazonS3ClientBuilder or AwsClientBuilder as alternatives.

For S3, simplest would be with AmazonS3ClientBuilder,

BasicAWSCredentials creds = new BasicAWSCredentials("access_key", "secret_key"); 
AmazonS3 s3Client = AmazonS3ClientBuilder.standard().withCredentials(new AWSStaticCredentialsProvider(creds)).build();

Use the code listed below to create an S3 client without credentials:

AmazonS3 s3Client = AmazonS3ClientBuilder.standard().build();

An usage example would be a lambda function calling S3.

You need to pass the region information through the

com.amazonaws.regions.Region object.

Use AmazonS3Client(credentials, Region.getRegion(Regions.REPLACE_WITH_YOUR_REGION))