Ted M. Young (he/him) aka @JitterTed

@ted.dev

1850 Followers 1403 Following

#Java coach/consultant/streamer. Maker of "JitterTed's TDD Game" https://tdd.cards Live streaming my coding mistakes at https://JitterTed.Stream and https://JitterTed.TV #Refactoring #JUnit #TDD #TestableArchitecture #DomainDrivenDesign #Ensembling #LGM

My mediocre attempt at a selfie with me in the front and attendees at the Leipzig meetup waving at the camera behind me. (one of two pics)
A selfie during our bike tour, learning about the history of Belgium (good and really bad) while visiting the Arc du Cinquantenaire (behind me is the huge 3 part arc where at the top a "bronze sculpture shows a woman riding a chariot pulled by four horses and waving a flag")
Selfie of me, smiling, holding a purple shopping bag from "The Chocolate Line," outside the shop. Inside the bag are chocolate "discs" made with beans from Vietnam (45%) and Peru (61%), along with a bar of "Coconut Chocolate".
A box of six assembled copies of JitterTed's TDD Game in their game boxes and plastic bags, ready for the long trip to Europe to be hand-delivered!
Two boxes of JitterTed's TDD Game, half-opened, with the top of the box displaying the Red-Green-Blue logo. Games are ready to go, packed with Hex Tiles, cards, manual, pawns, tokens, and a 6-sided die.
Shipping box with 8 newly manufactured copies of "JitterTed's TDD Game"! The hex tiles are separately packaged as it's my job to punch them out and assemble everything.
The last car of an ICE train (not mine) at the Frankfurt train station.
Ted is standing up over the table, facilitating JitterTed's TDD Game with six players. The hex tiles arranged in an upside-down triangle form the board, and each player with their own set of cards for playing and tracking commits and code risk.
Title slide from my talk by on how to stop fighting your ORM, and simplify your system using Event Sourcing. Has links to information about me (ted.dev/about) and the slides, source code, and more (ted.dev/talks).
A restaurant in Frankfurt, Germany, with its name "Pomodoro" in red script on a pink background above the windows. The joke is a play on the use of the term "Pomodoro" as a time-management technique (coined by Francesco Cirillo), where you break your work into 25-minute increments, and then take a 5-minute break. Still not sorry.
Restaurant with its name CRON displayed in large letters. Making the terrible joke on the phrase “cron job”. Sorry, not sorry.
Selfie of me pausing my run in front of the river in Frankfurt with a bridge and tower behind me.
Picture of trees and grass in front of the Medieval Town Wall
Two of the players with Ted (creator) and Arthur (facilitator) smiling at the camera, after another fun round of JitterTed's TDD Game at the JCON Europe Mentorship Hub table. On the table are the game's hex tiles making up the board, and cards showing the "collaboration" mode for playing a variation.
A close-up of a coffee cup with dark coffee, inside are the words “Life happens - coffee helps”
A selfie where I’m wearing a shirt with the slogan “Stop Forcing AI Into Fucking Everything” surrounded by the text “Nobody Asked For It” on top and “Everyone Hates It” on the bottom.
Composed image with a portrait of me (Ted M. Young), and my name, with the talk title: "Testable Architecture: Keep 'em Separated" and the logo for JCON Europe and JAVAPRO, a link to https://www.jcon.one, and the conference dates of April 20-23 (which will be in Cologne, Germany).
Screenshot of the chat log with Brevo's LLM: [Chat LLM] Using just: 202602110416.20497816880 should resolve the route error and return the matching log entry. [ME] no, it requires angle brackets, otherwise it doesn't work [LLM] You're absolutely right — for the /v3/smtp/logs endpoint, the messageId must match the exact SMTP header format, including the angle brackets.
Late afternoon sun against a bright blue sky over the Pacific Ocean, with a hazy Moloka’i off to the right and a hazier Lana’i off to the left. A wave crashes in the shore as my son joyfully jumps into it.
Speaker graphic, with the dev/nexus conference name at the top (subheading: Enterprise, Java, AI and Developer Tools Conference). Next is "I'm speaking at DevNexus 2026: 'Clear Up Messy Code with Refactoring Maneuvers in IntelliJ IDEA'". Below that are the conference dates: March 4-6, 2026, in Atlanta Georgia, USA. Below is a picture of my and name "Ted M. Young".
Speaker graphic, with the dev/nexus conference name at the top (subheading: Enterprise, Java, AI and Developer Tools Conference). Next is "I'm speaking at DevNexus 2026: 'Clear Up Messy Code with Refactoring Maneuvers in IntelliJ IDEA'". Below that are the conference dates: March 4-6, 2026, in Atlanta Georgia, USA. Below is a picture of my and name "Ted M. Young".
Speaker graphic, with the dev/nexus conference name at the top (subheading: Enterprise, Java, AI and Developer Tools Conference). Next is "I'm speaking at DevNexus 2026: 'Clear Up Messy Code with Refactoring Maneuvers in IntelliJ IDEA'". Below that are the conference dates: March 4-6, 2026, in Atlanta Georgia, USA. Below is a picture of my and name "Ted M. Young".
Speaker graphic, with the dev/nexus conference name at the top (subheading: Enterprise, Java, AI and Developer Tools Conference). Next is "I'm speaking at DevNexus 2026: 'Clear Up Messy Code with Refactoring Maneuvers in IntelliJ IDEA'". Below that are the conference dates: March 4-6, 2026, in Atlanta Georgia, USA. Below is a picture of my and name "Ted M. Young".
Speaker graphic, with the dev/nexus conference name at the top (subheading: Enterprise, Java, AI and Developer Tools Conference). Next is "I'm speaking at DevNexus 2026: 'Clear Up Messy Code with Refactoring Maneuvers in IntelliJ IDEA'". Below that are the conference dates: March 4-6, 2026, in Atlanta Georgia, USA. Below is a picture of my and name "Ted M. Young".
Dan in front of the projection screen giving his talk
Headshot of Ted M. Young, with the text "I'm speaking at the Commit Your Code Conference for Charity, September 25-26, Dallas, TX"
Headshot of Ted M. Young, with the text "I'm speaking at the Commit Your Code Conference for Charity, September 25-26, Dallas, TX"
Headshot of Ted M. Young, with the text "I'm speaking at the Commit Your Code Conference for Charity, September 25-26, Dallas, TX"
Picture of Denver, with a picture of me in the center, the text above: "I'LL BE SPEAKING AT AGILE 2025" and below: Ted M. Young (aka "JitterTed"), Test-Driven Development: Exploring the Spaces in Between. At the bottom is the text: JOIN ME FOR THREE DAYS IN DENVER, JULY 28-30! REGISTER NOW: AGILEALLIANCE.ORG/AGILE2025
Picture of Denver, with a picture of me in the center, the text above: "I'LL BE SPEAKING AT AGILE 2025" and below: Ted M. Young (aka "JitterTed"), Test-Driven Development: Exploring the Spaces in Between. At the bottom is the text: JOIN ME FOR THREE DAYS IN DENVER, JULY 28-30! REGISTER NOW: AGILEALLIANCE.ORG/AGILE2025
Tom explaining where Timefold fits: the slide is 3 nested circles, the outermost is "AI" (where Timefold fits), nested inside that is Machine Learning, nested inside that is "Gen AI"
Tom answering a question about constraint scoring, next to a Timefold view of the score showing that it did fulfill all hard constraints, and minimized the "soft" constraints.
Tom Cools pointing out that the atoms in the universe is on the order of 10^80, but the shift scheduling problem is on the order of 10^221 (141 more zeroes!)
Paul talking through a slide about Challenges with testing: • Requires development effort • Difficult to outsource • Engineers would rather be writing code • Engineers are human • Humans are not good/disciplined/fast at doing things they don't want to do • But Al can be good - if it can be trusted!
Title slide for presentation: "Agentic Al-driven unit test generation you can trust" What use are Al tools if they fail to meet developer's expectations for accuracy and consistency?
Security testing: utility methods * Compatible with @WebMvcTest * @WithMockUser for injecting simple users * @WithUserDetailsService * SecurityMockMvcRequestPostProcessors for MockMvc(Tester) * . csrf(), .opaqueToken() , .oidcLogin() ... * ... and more!
Max pointing to slide showing example code for Custom Elements (Left side of slide): class MyElement extends HTMLElement { constructor() { super(); customelements. define ("my-element", MyElement); (Right side of slide:) ‹body> </body> ‹my-element></my-element> < script> document.createElement ("my-element*); ‹/script>
Devoxx UK speaker Maximiliano Firtman with a slide describing Vanilla JavaScript: The usage of the core language and browser APIs to create web apps without any additional libraries or frameworks added on top
Macbook laptop lid showing sticker from Samman Coaching along with IntelliJ IDEA, Java Twitch Streaming (bottom middle), JitterTed's TDD Game, and the Java logo eating a bite out of the Apple logo (and the JavaOne sticker peeking in from the top-left)
Survey results showing Tech Leads and Peer Developers doing technical coaching/mentoring in orgs
Emily pointing to a slide that has the double-loop TDD: failing acceptance test (red) points to failing test (red), then green (make test pass), then refactor
Einar speaking to the slide "The Development Terrarium" at Devoxx UK 2025.
Einar (standing in front of a slide) comparing what the team(s) want from what the architect desires Team: Local, Specific, Internally Legible Architect: Global, Generic, Externally Legible
Trisha on stage, in front of a slide that says “Success”
Melinda Seckington on stage next to a slide with the title slide for the talk
Map of the Oakland Marathon and Half-Marathon route
Pattern matching: looking ahead Record constructors and record patterns are duals, and have deliberately similar syntax: var p = new Point (x, y) case Point(var x, var y) Eventually, any class, not just records, will be able to declare "class deconstruction patterns", just as they declare constructors today Eventually?, we'll have static patterns that are dual of static factories: var o = Optional. of(x) case Optional. of(var x) Eventually, new forms of aggregation (e.g., collection literals) will coma with dual forms of destructuring (e.g., collection patterns)
The real payoff: dealing better with data • Each of these features (records, sealed types, pattern matching) addressed common pain points, and could be justified on their own • But, together they move us towards an approach that is better suited to today's application development: data-oriented programming • The pattern matching arc is not yet finished, but it is a great fit for defining the "new boundaries" • Where untyped data enters the service and becomes typed Java data (after being validated) • Concise specification of what expect and how to extract the bits you want, at the boundary of your program • Inside the boundary, it's all just (ideally immutable) Java objects