Release: AWS SDK for Java 1.3.4

Release Notes>Java>Release: AWS SDK for Java 1.3.4
This release updates the AWS Identity and Access Management (IAM) client for new password management features, the Amazon Relational Database Service (RDS) client for VPC support, introduces a new download feature in the Amazon S3 TransferManager, adds support for the new Amazon EC2 m1.medium instance type, and fixes several bugs in Amazon Route 53 and Amazon DynamoDB clients.


Latest Version: 1.3.4
Created On: March 9, 2012 8:10 PM GMT
Last Updated: March 9, 2012 8:15 PM GMT


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New Features

Change Description
Password Management support for AWS Identity and Access Management

With the AWS Identity and Access Management Java client you can now define IAM user password policies, control required password length and complexity, and programmatically change IAM user passwords.

Using the AWS IAM Java client to manage passwords is easy:

AmazonIdentityManagementClient iam = 
    new AmazonIdentityManagementClient(myCredentials);

// set policy
iam.updateAccountPasswordPolicy(new UpdateAccountPasswordPolicyRequest()
// retrieve policy
System.out.println("Password Policy: " + iam.getAccountPasswordPolicy());

// delete policy
Amazon EC2 m1.medium Instance Type

The InstanceType enumeration in the AWS SDK for Java has been updated to include the new Amazon EC2 m1.medium instance type. m1.medium instances are ideal for many applications that require a reasonable amount of CPU and memory, but do not require all the resources of an m1.large instance. This new instance type supports both 32 and 64-bit AMIs.

Amazon RDS VPC Support

You can now take advantage of the manageability, availability and scalability benefits of Amazon RDS DB Instances in your own isolated VPC network. The same functionality of Amazon RDS including managing backups, replication for high availability, automatic failure detection and recovery, software patching, and ease of scaling your compute capacity and storage based on your application demand, are now available in Amazon VPC.

More information on Amazon RDS VPC support

Amazon S3 TransferManager Download Support

The Amazon S3 TransferManager class now supports downloading objects from Amazon S3, in addition to the existing support for uploading objects to Amazon S3. Just as with uploads, TransferManager gives you a high-level, asynchronous interface for managing and monitoring transfers from Amazon S3.

Downloading files with the Amazon S3 TransferManager is easy:

TransferManager tm = new TransferManager(myAwsCredentials);
Download download =, myKey, myFile);
while ( !download.isDone() ) {
    System.out.println("State:    " + download.getState());
    System.out.println("Progress: " + download.getProgress().getPercentTransfered()); 

// Downloads can also be aborted, or waited on
//    download.abort();
//    download.waitForCompletion();

Resolved Issues

Amazon DynamoDB Object Persistence Model

A number of bug fixes for the Amazon DynamoDB Object Persistence Model are included in this release:

  • DynamoDBMapper now correctly processes object keys when only one of the hash key or range key is auto-generated.
  • DynamoDBMapper now provides better error checking when attempting to save incompletely specified domain objects.
  • DynamoDBMapper will now treat empty strings like null strings, since DynamoDB will not accept empty strings.
  • DynamoDBMapper now correctly saves an object that consists of only key attributes.

Amazon Route 53 IDs

This release includes a fix for the Amazon Route 53 Java client so that IDs returned from Amazon Route 53 automatically have the URL resource path portion removed, so that they can be directly used in API requests, without requiring users to manually remove the URL resource path portion before using them (ex: '1234' is returned, instead of '/hostedzone/1234').

Supported API Versions

This release of the SDK supports the following API versions:

Service API Version
Amazon CloudFront 2010-11-01
Amazon CloudWatch 2010-08-01
Amazon DynamoDB 2011-12-05
Amazon Elastic Compute Cloud (EC2) 2011-12-15
Amazon Elastic MapReduce 2009-03-31
Amazon ElastiCache 2011-07-15
Amazon Relational Database Service (RDS) 2012-01-15
Amazon Route 53 2011-05-05
Amazon Simple Email Service (SES) 2010-12-01
Amazon Simple Notification Service (SNS) 2010-03-31
Amazon Simple Queue Service 2011-10-01
Amazon Simple Storage Service (S3) 2006-03-01
Amazon Simple Workflow Service (SWF) 2012-01-25
Amazon SimpleDB 2009-04-15
Auto Scaling 2011-01-01
AWS Cloud Formation 2010-05-15
AWS Elastic Beanstalk 2010-12-01
AWS Identity and Access Management 2010-05-08
AWS Import/Export 2010-06-01
AWS Security Token Service 2011-06-15
Elastic Load Balancing 2011-11-15
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