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Happy 10th year, JCertif!

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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

Java News Roundup: Oracle Critical Patch Update, Grizzly 5, Payara Platform, GraalVM, Liberica JDK

This week's Java roundup for January 19th, 2026, features news highlighting: JEP 527, Post-Quantum Hybrid Key Exchange for TLS 1.3, targeted for JDK 27; GlassFish Grizzly 5.0; the quarterly release of the Oracle Critical Patch Update (CPU) Advisory; the January 2026 edition of the Payara Platform; and maintenance releases of Liberica JDK, GraalVM, OpenXava and Ktor.

By Michael Redlich

OpenAI and Anthropic Introduce Healthcare-Focused AI Platforms

OpenAI and Anthropic have announced new healthcare-oriented AI offerings that extend their models beyond general conversational use and into regulated clinical and life sciences environments. Both releases emphasize technical integration, interoperability, and governance, reflecting a shift toward AI systems designed to operate directly within existing healthcare infrastructure.

By Robert Krzaczyński

Article: The Friction Fix: Change What Matters

Friction is the invisible current that sinks every transformation. Friction isn’t one thing, – it’s systemic. Relationships produce friction: between the people, teams and technology. The fix isn’t Kubernetes, the Cloud or AI. The fix is changing our patterns of thinking, communicating, and organizing.

By Cat Morris, Diana Montalion

Cedar Joins CNCF as a Sandbox Project

Cedar, an open-source policy language architected by AWS, has joined the CNCF as a Sandbox project. Designed for fine-grained application permissions, it decouples access control from code using a verifiable, high-performance policy engine. Cedar supports RBAC, ABAC, and ReBAC, offering a secure, analyzable alternative to general-purpose tools like OPA.

By Mark Silvester

Presentation: Theme Systems at Scale: How To Build Highly Customizable Software

Guilherme Carreiro discusses the architecture behind Shopify’s theme system, focusing on balancing extreme customizability with platform stability. He explains how they leverage Liquid as a safe DSL, optimize performance via native extensions (Rust/C), and use JSON schemas to bridge the gap between developers and merchants.

By Guilherme Carreiro

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