Speaker

Eric Deandrea

Eric Deandrea

Java Champion & Senior Principal Developer Advocate, Red Hat

Manchester, New Hampshire, United States

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Eric Deandrea is a Java Champion & Senior Principal Developer Advocate at Red Hat, focusing on application development technologies. Eric has over 25 years of experience designing and building Java-based solutions and developer training programs. He is a contributor to various OSS projects, including Quarkus, Spring, LangChain4j, WireMock, and Microcks, as well as a speaker at many public events and user groups around the world. Eric recently put his Quarkus and Spring knowledge to use by publishing his first book, “Quarkus for Spring Developers (https://red.ht/quarkus-spring-devs).” Outside of work, Eric enjoys boating on the lakes of New Hampshire, ice hockey, and martial arts, in which he holds a black belt in Kempo Karate.

Awards

Area of Expertise

  • Information & Communications Technology

Topics

  • quarkus
  • java
  • Spring
  • Spring Boot
  • Spring Cloud
  • Spring Framework
  • Spring Security
  • Spring Data JPA
  • Core Java / Java SE
  • Java and Server-side
  • Java language
  • Microservice Architecture
  • WireMock
  • Microcks
  • LangChain4j
  • open source
  • Kotlin

Quarkus Superheroes on Azure

Are you a developer building microservices? Do you struggle with developing and testing individual microservices? Do you want to learn about building and deploying microservices with Quarkus?

In this session, we will introduce the Quarkus Superheroes application and demonstrate how the application can facilitate local development within a microservices architecture. We will show how applications can be developed and tested in isolation. Additionally, we will demonstrate how the application can be easily deployed to a remote Kubernetes environment and how Quarkus features assist in the local development of individual microservices.

The Quarkus Superheroes application consists of several microservices demonstrating Quarkus features and best practices. The application allows superheroes to battle against supervillains. The applications access databases and communicate either synchronously or event-driven. Some of the applications are reactive while others are more traditional.

Taming Kubernetes: Tackling Inner Loop Development for Distributed Systems

Microservices and distributed systems in general are often deployed on a platform such as Kubernetes, which orchestrates the deployment and management of containerized applications. Microservices, however, don't exist in a vacuum. They typically communicate with other services, such as databases, message brokers, other microservices, or even AI models. This distributedness makes it hard for you to do local/inner-loop development and test efficiently.

In this talk, you will learn about some potential solutions you can use to help tackle some of these challenges by either running services locally in a more efficient way or by interacting with external dependencies/systems remotely.

You should come away from this session with some new ideas on how to work with distributed applications using technologies such as Docker Compose, Podman Desktop, Podman AI Lab, TestContainers, Quarkus, LangChain4j, Remote Development, Skupper, and Eclipse JKube.

You’ve all been there, haven’t you? You are developing an application that needs to connect to something else in order to function properly, yet you can’t (or don’t want to) run that “something else” on your local developer laptop. What are some of the tools and technologies that could help in this situation?

When Java and AI meet Open Source

AI and LLMs are all the rage these days, and if your applications aren’t incorporating them, then you will most likely be left behind.

In this talk, we will explore how to integrate AI into your cloud-native Java applications using Open Source tools and libraries, such as Quarkus and LangChain4j. We will demonstrate how to use and interact with various LLMs, such as GPT, Dall-E, or HuggingFace.

We will showcase a fun, yet practical, example using a real-world Quarkus microservices application, deployed in Azure and integrated with OpenAI providers. We will also demonstrate some of the Quarkus Langchain4J extension capabilities. Through these examples, you will see just how easy it is to supercharge your applications with AI!

#opensource #ai #quarkus #langchain #hugginface #azure #java #kotlin #react #openai

Quarkus for Spring Developers

In this session, I will show concepts and conventions familiar to Spring developers and how those same concepts and conventions can be implemented in Quarkus, all while highlighting similarities and differences between them. Additionally, I will show similarities and differences in how testing is done, highlighting Quarkus Dev Services.

This session will be mostly live coding while minimizing the amount of slides. I will introduce an existing Spring application with a full test suite and build a Quarkus equivalent version of it, live.

TDD: It's easier than you think!

Everyone loves writing tests, don’t they? How do you write good tests? What tools are available for you to write good tests?

In this session, I will dive into the many features of Quarkus that help developers write good tests. I will highlight some of the features of Quarkus, Dev Services and Continuous Testing, which help make testing easier. Additionally, I will live code some tests for common use cases developers encounter, including unit, integration, and “black box” testing of imperative and reactive RESTful and event-driven applications that use common services, such as databases and Kafka brokers. I will discuss techniques such as mocking, spying, and interaction-based testing/verification.

How to avoid common pitfalls with modern microservices testing

Have you ever wondered why your microservices break in production after all the tests have passed during CI/CD? Have you ever wondered if you’re testing too much or too little? If you want to learn about common pitfalls and how to catch them at build time rather than at runtime, this session is for you!

In this session, we’ll share some common battle scars from our experiences in the field. Additionally, we will introduce the testing pyramid and explain why it is important in helping to continuously deploy microservices independently without fear. We will demonstrate, through a test-driven development approach, how the combination of Pact contract testing combined with Quarkus developer joy can help prevent your microservices from breaking in production

IBM TechCon 2024

Refactoring to Kube-native Java with Quarkus

March 2024

San Francisco Java Users Group

How to avoid common pitfalls with modern microservices testing
Recording: https://youtu.be/TJK4_wEbwJ8

February 2024 San Francisco, California, United States

Boston Java Users ACM Chapter

How to avoid common pitfalls with modern microservices testing

September 2023 Burlington, Massachusetts, United States

JavaZone

Quarkus for Spring Developers
Recording: https://vimeo.com/862003843

September 2023 Oslo, Norway

RivieraDev

Quarkus Deep Dive Workshop
Quarkus for Spring Developers
Avoiding common pitfalls with modern microservices testing

July 2023 Valbonne, France

DevBcn 2023 Sessionize Event

July 2023 L'Hospitalet de Llobregat, Spain

Pittsburgh Java Meetup Group

Use Quarkus Funqy to deploy Java Serverless functions to multiple clouds
Recording: https://youtu.be/2q-NGCkotpI

June 2023

Red Hat Summit

Lightning talk - Quarkus for Spring Developers
Workshop: Modern Application Development
Workshop: Accelerate new Application Development
Workshop: Building a Message Hub with Apache Camel

May 2023 Boston, Massachusetts, United States

Devoxx UK 2023

Quarkus for Spring Developers
Recording: https://youtu.be/z8-sXMZ6pjE

How to avoid common pitfalls with modern microservices testing
Recording: https://youtu.be/CQcbGcWFW3Q

May 2023 London, United Kingdom

Boston Java Meetup Group

Hands-on workshop: Spring Boot microservices to Quarkus with little-to-no code changes

April 2023 Boston, Massachusetts, United States

DevNexus 2023

Quarkus for Spring Developers
Recording: https://youtu.be/Zrsg2Tt60rw

Avoiding common pitfalls with modern microservices testing
Recording: https://youtu.be/pvsl-Y5d4KU

April 2023 Atlanta, Georgia, United States

Dublin Java User Group

Quarkus for Spring developers deep dive

February 2023 Dublin, Ireland

Boston Java Users ACM Chapter

Quarkus for Spring Developers

January 2023 Burlington, Massachusetts, United States

San Francisco Java Users Group

Microservices with Quarkus

December 2022 San Francisco, California, United States

Silicon Brighton Java User Group

Quarkus for Spring Developers
Recording: https://youtu.be/4HqRv45fEps

November 2022 Brighton, United Kingdom

Cleveland Java Users Group

Quarkus World Tour

October 2022 Cleveland, Ohio, United States

Devoxx Belgium 2022

How to avoid common pitfalls with modern microservices testing
Recording: https://youtu.be/vYwkDPrzqV8

October 2022 Antwerpen, Belgium

J4K

Quarkus for Spring Developers
Recording: https://youtu.be/sfLhshPGW4A

How about some tests with your applications?
Recording: https://youtu.be/dbnXkJnIVl8

September 2022

JCON 2022 ONLINE (virtual) Sessionize Event

September 2022

Code PaLOUsa 2022 Sessionize Event

August 2022 Louisville, Kentucky, United States

THAT Conference Texas

Reactive Apps with Quarkus + Responsive Data with Cassandra = Developer Nirvana!

May 2022 Round Rock, Texas, United States

Microsoft JDConf 2022 Sessionize Event

May 2022

Eric Deandrea

Java Champion & Senior Principal Developer Advocate, Red Hat

Manchester, New Hampshire, United States

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