April 2021 Blog Posts (1)

The 2021 JakartaEE Developer Survey is now open!

The 2021 JakartaEE Developer Survey is now open! The survey only takes a few minutes to complete.

https://www.surveymonkey.com/r/FD2GWM8

Added by Michael Levin on April 16, 2021 at 10:39am — No Comments

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Happy 10th year, JCertif!

Notes

Welcome to Codetown!

Codetown is a social network. It's got blogs, forums, groups, personal pages and more! You might think of Codetown as a funky camper van with lots of compartments for your stuff and a great multimedia system, too! Best of all, Codetown has room for all of your friends.

When you create a profile for yourself you get a personal page automatically. That's where you can be creative and do your own thing. People who want to get to know you will click on your name or picture and…
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Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.

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InfoQ Reading List

Article: From Batch to Micro-Batch Streaming: Lessons Learned the Hard Way in a Delta Index Pipeline

This article describes how a production delta-index pipeline migrated from scheduled batch to micro-batch Spark Structured Streaming. It covers why record-level streaming was rejected, how partition-based watermarks replaced fragile S3 completion markers, overlap-window correctness, and restart-as-design strategies for better predictability in object-store–based ingestion systems.

By Parveen Saini

Podcast: Roq: Leveraging Quarkus to Build Static Sites at the Speed of Go

Andy Damevin, a developer who worked on Quarkus for almost a decade, talks about Roq. A project that started as an experiment to try to see if it’s possible to build a static web site generator on top of quarkus. He touches on the rationale for choosing Java and Quarkus, how to migrate to Roq, and the platform's future.

By Andy Damevin

DoorDash Used Copilot to Convert Its XCTest-Based iOS Test Suite to Swift Testing

Using Copilot along with strong reliability safeguards, DoorDash migrated their iOS XCTest-based test suite to Swift Testing, thus modernizing a large test suite quickly, safely, and with measurable performance gains, says DoorDash engineer Matheus Gois.

By Sergio De Simone

Java News Roundup: OpenJDK JEPs, GlassFish, Spring AI, JReleaser, A2A Java SDK, Google ADK, Gradle

This week's Java roundup for April 27th, 2026, features news highlighting: OpenJDK JEPs for JDK 27; the fifth milestone release of Spring AI 2.0; the second milestone release of GlassFish 9.0; point releases of Quarkus, JReleaser, Gradle, LangChain4j and Google ADK for Java; the second beta release of Hardwood; and the first beta release of A2A Java SDK 1.0.

By Michael Redlich

Cloudflare Builds High-Performance Infrastructure for Running LLMs

Cloudflare has recently announced new infrastructure designed to run large AI language models across its global network. As these models rely on costly hardware and must handle large volumes of incoming and outgoing text, Cloudflare separates the model's input processing and output generation onto different optimized systems.

By Renato Losio

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