The document discusses Amazon Web Services (AWS) tools and services for Java development. It introduces Amazon Corretto, an open-source distribution of OpenJDK supported by AWS. It also discusses the AWS SDK for Java version 2, which is modularized and supports HTTP/2 streaming. Finally, it presents the AWS Cloud Development Kit (CDK), which allows defining AWS infrastructure as code for provisioning resources in a declarative way.

1. S U M M I T
Lo n don

2. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Java on AWS
Lee Packham
Solutions Architect
Amazon Web Services

3. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
`whoami`
Lee Packham
Solutions Architect
Amazon Web Services
• 20 years experience of dev, systems architecture and DevOps
across Startup and Enterprise; 10 years of AWS experience
• Developer (Python/Go/Java/Scala/Kotlin/C/Node/Rust)
• Working with customers as well as internal teams on services
such as AWS Cloud Development Kit (CDK)
Twitter: @joolz / Email: leepac@amazon.com

4. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
What we’ll cover
• The JVM ecosystem in relation to AWS
• Amazon Corretto
• The AWS Java SDK v2
• Developer Preview of AWS Cloud Development Kit (CDK)

5. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS JVM Ecosystem
Kinesis
Consumer
Library
Kinesis
Producer
Library
Kinesis/Streaming
S3 Transfer
Manager
S3A
Hadoop FS
S3
Encryption
Client
Amazon S3
DynamoDB
Mapper
DynamoDB
Document
API
DynamoDB
Encryption
Client
Amazon DynamoDB
DynamoDB
Accelerator
(DAX) Client
SWF
Flow Library
Step
Functions
DSL
Workflow
Eclipse
Toolkit
Beanstalker
Maven
Plugins
Client-Side Build Tools
Third Party
Scala SDKs
SQS
Extended
Client
Library
IAM Policy
DSL
Java Mail
Client for
SES
Other
Code Deployment
AWS
CodeStar
AWS
CodeDeploy
AWS
CodePipeline
Execution Environments
AWS Elastic
Beanstalk
AWS
Lambda
Amazon EMR Amazon ECSAmazon EC2
Ships with SDK (v1)
AWS Open Source
3rd Party Open
Source
AWS Services
Legend
Ships with SDK (v2)
AWS SDK
for Java (v1)
Toolkit for
IntelliJ
Serverless
deployment
with IntelliJ
AWS SDK
for Java (v2)
New APIs
with SDK v2
Faster SDK
start-up in
Lambda
HTTP/2 Bi-
Directional
Streaming
Full duplex
streaming
Cloud
Development
Kit (CDK)
Infrastructure
as code
Amazon
Corretto
Amazon
supported
OpenJDK

6. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Amazon Corretto
• Amazon supported distribution of OpenJDK
• Run internally on thousands of production services
• Multiplatform: Amazon Linux 2, Windows, macOS, Docker, Ubuntu, etc.
• No cost – Distributed under open source license - no charge for use or
distribution
• No cost LTS (patches, performance improvements)
• Both Corretto 8 and 11 are Generally Available
• Open source – all patches and enhancements will be upstreamed to
OpenJDK - https://github.com/corretto
• More info - https://aws.amazon.com/corretto

7. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS Toolkit for JetBrains
Meeting developers where they are
IntelliJ
PyCharm
Broad ecosystem
• WebStorm
• Clion
• RubyMine
• Rider
• AppCode
• GoLand

8. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS Toolkit for IntelliJ IDEA & PyCharm
Make it easier to develop on AWS
Open Source
Initial focus: Serverless
AWS Lambda
AWS SAM CLI Integration
Local debugging
Serverless application support
Basic resource/credential management
Will grow support across AWS
https://aws.amazon.com/intellij

9. S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

10. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS SDK
for Java
Ships with SDK (v1)
AWS Open Source
3rd Party Open
Source
AWS Services
Legend
Ships with SDK (v2)
Kinesis
Consumer
Library
Kinesis
Producer
Library
Streaming
Eclipse
Toolkit
Beanstalker
Maven
Plugins
Client-Side Build Tools
Third Party
Scala SDKs
Execution Environments
AWS Elastic
Beanstalk
AWS
Lambda
Amazon EMR Amazon ECSAmazon EC2
Toolkit for
JetBrains

11. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS SDK
for Java (v2)
AWS SDK
for Java (v1)
AWS SDK
for Java
Ships with SDK (v1)
AWS Open Source
3rd Party Open
Source
AWS Services
Legend
Ships with SDK (v2)
Kinesis
Consumer
Library
Kinesis
Producer
Library
Streaming
Execution Environments
AWS Elastic
Beanstalk
AWS
Lambda
Amazon EMR Amazon ECSAmazon EC2
Eclipse
Toolkit
Beanstalker
Maven
Plugins
Client-Side Build Tools
Third Party
Scala SDKs
Toolkit for
JetBrains

12. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Ships with SDK (v1)
AWS Open Source
3rd Party Open
Source
AWS Services
Legend
Ships with SDK (v2)
Kinesis
Consumer
Library
Kinesis
Producer
Library
Streaming
Execution Environments
AWS Elastic
Beanstalk
Amazon EMR Amazon ECSAmazon EC2
Eclipse
Toolkit
Beanstalker
Maven
Plugins
Client-Side Build Tools
Third Party
Scala SDKs
Toolkit for
JetBrains
AWS SDK
for Java (v1)
AWS SDK
for Java (v2)
AWS
Lambda

13. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS Lambda and the AWS SDK for Java v2
How to get the best Lambda experience with the SDK
Startup time of the SDK
What did we change?
URLConnection as http client
Moved off of Jackson Object Mapper at runtime
Generate resources at compile time
Profile, profile, profile

14. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS SDK for Java v2
Modularized
Endpoint Discovery
Client Cloud
Client
Cloud
Cloud
Cloud

15. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS SDK for Java v2
Modularized
Endpoint Discovery
HTTP/2 Event Streaming
Fully Non-Blocking HTTP/2 Clients
Bi-directional real-time streaming responses

16. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Ships with SDK (v1)
AWS Open Source
3rd Party Open
Source
AWS Services
Legend
Ships with SDK (v2)
Kinesis
Consumer
Library
Kinesis
Producer
Library
Streaming
Execution Environments
AWS Elastic
Beanstalk
Amazon EMR Amazon ECSAmazon EC2
Eclipse
Toolkit
Beanstalker
Maven
Plugins
Client-Side Build Tools
Third Party
Scala SDKs
Toolkit for
JetBrains
AWS SDK
for Java (v1)
AWS SDK
for Java (v2)
AWS
Lambda

17. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Ships with SDK (v1)
AWS Open Source
3rd Party Open
Source
AWS Services
Legend
Ships with SDK (v2)
Execution Environments
AWS Elastic
Beanstalk
Amazon
Elastic Map
Reduce
(EMR)
Amazon EC2
Container
Service (ECS)
Amazon
Elastic
Compute
(EC2)
Eclipse
Toolkit
Beanstalker
Maven
Plugins
Client-Side Build Tools
Third Party
Scala SDKs
Toolkit for
JetBrains
AWS SDK
for Java (v1)
AWS SDK
for Java (v2)
AWS
Lambda
Kinesis
Consumer
Library
Kinesis
Producer
Library
Streaming
HTTP/2 Bi-
Directional
Streaming

18. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS SDK for Java v2
GA as of 11/18
https://github.com/aws/aws-sdk-java-v2
https://docs.aws.amazon.com/sdk-for-java/v2/developer-guide/welcome.html
KCL 2.0 Available Now
https://github.com/awslabs/amazon-kinesis-client
High-Level Libraries Coming Soon
S3 Managed Multi-Part Uploads/Downloads
DynamoDB ORM & Document Model
IAM Policy Generation
API Gateway Client Generation
And More With Your Feedback!

19. S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

20. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Manual
Easy to get started
Not reproducible
Error prone
Time consuming
Manual
High
level
Low
level

21. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Scripted
What happens if an API call fails?
How do I make updates?
How do I know a resource is ready?
How do I roll back?
Scripted
Manual
High
level
Low
level

22. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Resource provisioning engines
AWS CloudFormation
template
(JSON/YAML)
HashiCorp Configuration
Language (HCL)
Desired state configuration
Easy to automate
Reproducible
Configuration syntax
No abstraction, lots of details
Declarative
Scripted
Manual
High
level
Low
level

23. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Document Object Models (DOMs)
Troposphere Python
SparkleFormation Ruby
GoFormation Go
…
if statements, for loops, IDE benefits
Ex: 218 lines of Troposphere for a VPC
AWS
CloudFormation
Template
Real code
Desired state
Abstraction is not built-in
DOMs
Declarative
Scripted
Manual
High
level
Low
level

24. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
AWS CDK
AWS
CloudFormation
template
AWS CDK application
Stack(s)
Construct Construct
Resources
Developer preview
Componentized
DOMs
Declarative
Scripted
Manual
High
level
Low
level

25. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Simple CDK example
Stack

26. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Simple CDK example
Stack
Queue queue = new Queue(this, "Queue", QueueProps.builder()
.withVisibilityTimeoutSec(300)
.build());
Topic topic = new Topic(this, "Topic", TopicProps.builder()
.withDisplayName("Some Amazing Topic")
.build());

27. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Simple CDK example
Queue queue = new Queue(this, "Queue", QueueProps.builder()
.withVisibilityTimeoutSec(300)
.build());
Topic topic = new Topic(this, "Topic", TopicProps.builder()
.withDisplayName("Some Amazing Topic")
.build());
topic.subscribeQueue(queue);

28. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T
Synthesized Template
{
"Resources": {
"Queue4A7E3555": {
"Type": "AWS::SQS::Queue",
"Properties": { "VisibilityTimeout": 300 }
},
"QueuePolicy25439813": {
"Type": "AWS::SQS::QueuePolicy",
"Properties": {
"PolicyDocument": {
"Statement": [
{
"Action": "sqs:SendMessage",
"Condition": {
"ArnEquals": {
"aws:SourceArn": { "Ref": "TopicBFC7AF6E" }
}
},
"Effect": "Allow",
"Principal": { "Service": "sns.amazonaws.com" },
"Resource": {
"Fn::GetAtt": [ "Queue4A7E3555", "Arn" ]
}
}
],
"Version": "2012-10-17"
},
"Queues": [{ "Ref": "Queue4A7E3555" }]
}
},
"TopicBFC7AF6E": {
"Type": "AWS::SNS::Topic",
"Properties": {
"DisplayName": "Some Amazing Topic"
}
},
"TopicQueueSubscription2D098ED4": {
"Type": "AWS::SNS::Subscription",
"Properties": {
"Endpoint": {
"Fn::GetAtt": [ "Queue4A7E3555", "Arn" ]
},
"Protocol": "sqs",
"TopicArn": { "Ref": "TopicBFC7AF6E" }
}
}
}
}

29. © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.S U M M I T

30. S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
npm install –g aws-cdk

31. S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
mkdir –p ~/cdk/myapp
cd "$_"
cdk init app --language=java

32. S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.

33. Thank you!
S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.
Lee Packham
@joolz
leepac@amazon.co.uk

34. S U M M I T © 2019, Amazon Web Services, Inc. or its affiliates. All rights reserved.