Codetown ::: a software developer's community
I’m told this is a great intro to reactive programming. So of course, I intend to read it! Here it is: https://gist.github.com/staltz/868e7e9bc2a7b8c1f754
Thoughts?
Added by Michael Levin on May 24, 2018 at 3:12pm — No Comments
you haven’t checked it out already, take a look at www.photofeeler.com. Read about it’s logic. It’s fascinating! Stay tuned for more. I’m blogging form my iPhone!
Added by Michael Levin on May 15, 2018 at 10:00am — No Comments
This Java ecosystem survey is both informative and will be useful to many people. Please fill it out if you have the time.
Added by Michael Levin on May 14, 2018 at 3:30pm — No Comments
For those of you interested in going to Java One, now known as Code One, the call for papers has been extended a week.
This year, Code One will have much more than just Java. You'll find Python and Go, R and much more.
Take a look at the agenda and think about going. And, for an even more exciting time, think about submitting a proposal…
ContinueAdded by Michael Levin on May 13, 2018 at 9:52am — No Comments
Hey, I started a Kotlin group - check it out and join if you'd like! I just put up a page dedicated to Kotlin links, books, and more resources. Will add more features like popular frameworks and chat later on.
Added by Amanda Hinchman-Dominguez on May 9, 2018 at 10:59am — 3 Comments
Every Java developer, in fact every software developer should have the opportunity to attend a technical conference every year or so. Increasingly, software conferences like Java One (now Code One) are becoming more broad and including multiple technologies. Ian Darwin is now publishing a great calendar of Java-related conferences. Here's the link: …
Added by Michael Levin on May 7, 2018 at 1:33pm — No Comments
If you’re passionate about the state of Istio, know how to leverage it with open source tools such as Prometheus and Zipkin, have an Istio demo, or have a great story or best practice to share, O'Reilly wants to hear from you. Each jam-packed 30-minute session should include your insights on why you have chosen Istio and how you are getting the most out of it. Istio Day sessions will take place on…
Added by Michael Levin on May 2, 2018 at 9:44am — No Comments
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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.
Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
Check out the Codetown Jobs group.

Airbnb has redesigned its identity system to support privacy-first social features in Experiences. The platform introduces context-specific profiles that separate global user identity from externally visible profiles, preventing cross-context linkage. The migration leveraged automated auditing, manual validation, and AI-assisted refactoring to enforce correct identity usage across services.
By Leela Kumili
JEP 533, Structured Concurrency, has reached integrated status for JDK 27. It refines exception handling and type safety in its API, particularly focusing on exception flow with a new ExecutionException type. Changes include an updated Joiner interface and a new open overload for easier configuration. The steady evolution signals ongoing development as feedback shapes the API.
By A N M Bazlur Rahman
Paulo Arruda discusses Shopify’s evolution in AI adoption, moving from simple chat tools to a sophisticated swarm of specialized agents. He explains the transition from massive "all-in-one" prompts to lean, narrow-focused agent microservices that slash task times from hours to minutes. He also shares a future-looking hypothesis on using filesystem-based adapters to solve context bloat.
By Paulo Arruda
Backlogs in distributed systems are arithmetic problems, not mysteries. This article provides practical formulas for calculating backlog drain time, sizing consumer headroom, and setting auto-scaling triggers. It covers key failure modes — retry amplification, metastable states, and cascading pipeline bottlenecks — plus when to shed load instead of draining.
By Rajesh Kumar Pandey
Grafana Labs has launched Pyroscope 2.0, a rearchitected open-source continuous profiling database. This version improves storage costs, query performance, and operational complexity. Key changes include single write paths for profiles, stateless query processing, and enhanced capabilities for profiling data. It supports the OpenTelemetry Protocol, aligning with current trends in observability.
By Matt Saunders
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