Hyyan Abo Fakher

Lead Software Architect | Web Platform | Sharing Java, JavaScript, UI & DX insights

[Hyyan Abo Fakher @HyyanAF]

Implementation details and docs:

https://t.co/ZYziX0Z6kp

[Hyyan Abo Fakher @HyyanAF]

A Java application running inside an AI assistant, with both sharing the same application state.

The model can open a view, change it through MCP tools, and the user can interact with the same live UI.

Built with Java, Spring Boot, Spring AI, MCP Apps and webforJ.

Demo ↓

[Dan Vega @therealdanvega]

This is awesome news!! Embabel now runs on Spring Boot 4 and Spring AI 2 🤩

[Hyyan Abo Fakher @HyyanAF]

Java devs restart the app for every change and call it normal. We just shipped live updates in webforJ: save a class and the running app rebuilds only the part of the screen that changed, session and state intact. CSS lands instantly.

[Jarred Sumner @jarredsumner]

Rewriting Bun in Rust

https://t.co/Rl8bcaxBFc

[Hyyan Abo Fakher @HyyanAF]

In the clip, I integrate a React flow-agent component and control it directly from Java.

Zero configuration. Hot reload. A single server command.

What did you skip pulling into a Java app because of that second frontend process?

[Hyyan Abo Fakher @HyyanAF]

webforJ never needed a bundler.

Standard web components, pure CSS, handed straight to the browser.

That was a strength, until you wanted React, Vue, or Tailwind.

Now one annotation pulls any of it into a Java app. Here's a React component driven from Java:

#Java

[Hyyan Abo Fakher @HyyanAF]

webforJ ships a first class bundler built on Bun.

Whatever you want your Java app to load is one @BundleEntry annotation away. CSS, TypeScript, Vue, React, it all just works.

[Dan Vega @therealdanvega]

Prompt caching in Spring AI can seriously cut your Claude API bill. Here's how it works and how to set it up.

https://t.co/fGdSEyXsAD

[Dan Vega @therealdanvega]

🧐 Observation: JDK 25's flexible constructor bodies finally let you validate arguments before calling super(). We've been working around this limitation for 25+ years. Sometimes the boring fixes matter most.

[Hyyan Abo Fakher @HyyanAF]

Cursor makes the model answer "why am I doing this?" before every function call. Not in the chat. In the function definition itself.

Almost AI coding agents don't do this at all.

Why does Cursor?

https://t.co/hluXeKt9K8

#ai #llm

[Hyyan Abo Fakher @HyyanAF]

JDK 26 previews LazyConstant - declare the field final, defer the value. The JVM treats it as a true constant via @Stable, so you get constant folding without eager init.

https://t.co/qiT2QWovJv

#Java

[Hyyan Abo Fakher @HyyanAF]

this is getting out of hand. moltbook is going off the rails lol

https://t.co/zfu1iTpvsm

[Hyyan Abo Fakher @HyyanAF]

engineers: yeah
everyone else: 😱

[Josh Long @starbuxman]

Very interesting post by Christian Tzolov on subagent orchestration with Spring AI

https://t.co/pvFn0Ku21r

[IntelliJ IDEA, a JetBrains IDE @intellijidea]

You asked, we implemented! 🚀

We’re happy to announce that you can now debug remote apps with Spring Debugger!

It currently uses JDWP and supports Tomcat, Jetty, and Undertow. 🛠️

Read more 👇 https://t.co/bRB0EOQbJQ

[Dan Vega @therealdanvega]

🤖Spring AI now supports native structured output.

One line of config and your JSON responses are guaranteed to match your schema. No more hoping the LLM follows your formatting instructions.

https://t.co/8E3H7S2w22

[Piotr Mińkowski @piotr_minkowski]

A new way to register beans programmatically beginning from Spring Framework 7 👇👇👇