Elder Moraes

Helping @java developers to build and deploy the best software in the industry. @Java_Champions. Published author. Board member @soujava.

[Elder Moraes @elderjava]

I can't express with enough words how happy I'm to join the amazing group of @Java_Champions!

I need to say thank you to the global @java community for being so good to me since the day one.

Thank you also to my fellows from @soujava: it wouldn't be possible without you!

#java

[Java Champions @Java_Champions]

Congratulations to new Java Champion @elderjava! https://t.co/Tiv4WJQOlb

[Elon Musk @elonmusk]

Grok on Cloudflare

[LangChain4j @langchain4j]

#LangChain4j 1.16.0 is out!

https://t.co/zRFjynMclP

[Markus Eisele @myfear]

Why isn't Quarkus 2x faster than Spring on my machine?

https://t.co/vH8rybkkfN

#java #quarkus #spring @forked_franz

[Markus Eisele @myfear]

Zero-trust only gets useful once you can tell whether a failure came from TLS, service identity, or business policy. This walkthrough builds three Quarkus services with app-managed mTLS, OIDC service tokens, and edge-only branch checks, then proves each failure path.

https://t.co/Wx74VwuTzr

#Quarkus #Security #Microservices

[Boris Cherny @bcherny]

We doubled Claude Cowork usage limits for the next month. This applies to your 5-hr rate limits. If you’ve been saving up a big messy project, now’s the time.

[IBM Developer @IBMDeveloper]

Build with IBM Bob, your AI-powered development partner. Register today: https://t.co/tGJ529TzC7

[IBM Developer @IBMDeveloper]

Take it from idea to reality—and compete for a share of $15,000 in cash prizes.💸

[IBM Developer @IBMDeveloper]

The AI Builders Challenge with IBM Bob is now open for university students.

That AI project you've been thinking about? 👀

Build it. 🏗️

[Andrew Ng @AndrewYNg]

New course on serving LLMs efficiently -- how do you serve models to many concurrent users at low latency and reasonable cost? This short course is built with @RedHat and taught by @cedricclyburn.

Efficient LLM serving requires efficient memory management. A 70B-parameter model takes ~140 GB just to load the weights. On top of that, every active request needs its own chunk of GPU memory, the KV cache, to store the token context it has built up so far. In this course, you'll learn to reduce a model's memory footprint with quantization and serve it using vLLM, which handles many concurrent requests efficiently through smart memory management.

Skills you'll gain:
- Quantize a model and measure the accuracy tradeoff
- Serve a model with vLLM and watch it handle concurrent requests efficiently
- Benchmark your deployment and make informed tradeoffs between speed, cost, and accuracy

Join and learn to serve LLMs efficiently:
https://t.co/x04xMbFlkO

[Anthropic @AnthropicAI]

Our internal data shows Claude is accelerating AI development—a possible path to recursive self-improvement, or AI autonomously building a more capable successor.

It’s happening faster than we thought, and the implications deserve greater attention. https://t.co/OVVPJO7VQx

[Elder Moraes @elderjava]

So the real call for a Java team: you get Docling-grade parsing without rewriting your RAG pipeline in Python. Orchestration, observability and security stay in your JVM stack. The cost you take on is running docling-serve. Weigh it against the parse fidelity.

5/5

[Elder Moraes @elderjava]

@langchain4j 1.15.0 shipped an integration with #Docling, @IBM Research's document parser. If you build #RAG in @Java, it lands on the messiest stage of the pipeline: getting clean text and tables out of real PDFs and DOCX.

1/5

[Elder Moraes @elderjava]

What you run underneath: Docling itself runs as a docling-serve instance. The LangChain4j integration is a Java REST client for it, built on the official Docling Java library. You operate a separate service and point the parser at its endpoint.

4/5

[Elder Moraes @elderjava]

Hi @bcherny! Claude Code plan mode still asks permission for trivial stuff (ls, grep, find). Anyway to make it more confident?

[Thariq @trq212]

Workflows are the biggest upgrade to Claude Code’s capabilities since skills and subagents.

I dove deep into it with @sidbid to figure out best practices, examples and more.  I’m particularly excited about the non-technical tasks it enables for Claude Code.

[Elder Moraes @elderjava]

A change to the default object layout can move your cost per pod more than another framework rewrite will. It's unglamorous, it ships inside the platform you already run, and RDP1 for JDK 27 begins June 4.

6/6

[Elder Moraes @elderjava]

JDK 27 forks from the main line on June 4. Two JVM defaults flip in this release, and both change what a Java service costs to run in a container. Neither asks you to touch a line of code.

1/6

[Elder Moraes @elderjava]

The catch with any default is that it moves your baseline quietly. Heap sizing, GC behavior, and footprint numbers all shift under you. Re-measure on your real workload before you trust the new defaults in production.

5/6