Codetown ::: a software developer's community
The O'Reilly Open Source Convention is just a few weeks away and we have free expo plus passes available. OSCON is the best place to sharpen your skills and discover important new trends, making you better at what you do and rekindling your love of all things digital. The Expo Plus pass includes access to the expo hall, all evening events, sponsored sessions and…
Added by Michael Levin on April 25, 2016 at 3:29pm — No Comments
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The Devoxx Poland call for papers closed!
es 3/31/16. Why should you submit your abstract? Devoxx Poland occurs in beautiful Krakow. June 22-24 are the dates. That's the most desirable time to be in central Europe. It's a global conference so you'll meet people from all over the world.
There were over 2000 participants last year. The…
ContinueAdded by Michael Levin on March 30, 2016 at 7:30am — No Comments
Open Source Enthusiasts: this is a great conference. I have been to OSB and I can vouch for it. It's well attended and the talks are top notch. Plus, it'll bring you back into touch with the Portland community this year. Here's some info:
Open Source Bridge: http://opensourcebridge.org
Open Source Bridge is a…
ContinueAdded by Michael Levin on March 15, 2016 at 11:38am — No Comments
What the heck are containers, microservices and Docker? Did I read somewhere that Docker has been downloaded 2 billion times? Two billion? That's insanely huge! Docker is a container. …
Added by Michael Levin on February 13, 2016 at 9:30am — No Comments
Hello, OrlandoJUG!
We had a great meeting last week. Didn't come? You missed out on a great talk about Java Server Faces and Servlet by Ed Burns, but the good thing is his books are easy to find and he's local.…
ContinueAdded by Michael Levin on February 2, 2016 at 12:57pm — No Comments
Open Source Bridge is a conference in Portland, Oregon. It's in June and that's a great time to be in Portland. This year, OSCON is going to be in Austin. OSB's call for papers is open now. There are lots of reasons to pick Open Source Bridge as a conference destination this year. Check out the …
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Added by Michael Levin on January 11, 2016 at 5:30am — No Comments
Introducing Java 8
by Raoul-Gabriel Urma
Offers a practical tutorial to some of the core Java 8 features and gets you programming quickly with Java 8.http://www.oreilly.com/programming/free/introducing-java-8.csp
Object Oriented vs Functional Programming
by Richard Warburton
Explains the similarities and differences…
Added by Michael Levin on January 7, 2016 at 1:53pm — No Comments
Added by Michael Levin on December 22, 2015 at 1:38pm — No Comments
If you're learning JavaScript or just interested in how it's moving along, this survey has some nuggets to glean like what the most popular tools are these days. Have a look: https://ponyfoo.com/articles/javascript-developer-survey-results
Added by Michael Levin on December 16, 2015 at 9:30pm — No Comments
The new JUG Africa social group is live! Check it out here: https://community.oracle.com/groups/jug-africa-social-group
http://medianetwork.oracle.com/video/player/4640558532001
And more…
ContinueAdded by Michael Levin on December 7, 2015 at 10:30am — No Comments
Added by Michael Levin on December 7, 2015 at 10:30am — No Comments
Oracle Academy’s free program offers learning resources and technologies for individual students:
BIG DATA ONLINE TRAINING
The objective of trainings, developed by Dan McClary, the product manager of “Oracle Academy Big Data Science…
ContinueAdded by Michael Levin on November 13, 2015 at 6:05pm — No Comments
Matt Raible just published the slide deck to his JHipster talk. What's JHipster? Check out Matt's talk here:…
Added by Michael Levin on November 13, 2015 at 11:59am — No Comments
Java One 2015 happened this week. There were so many interesting sessions you could nearly throw a dart at a dartboard with topics and go to the one you selected at random. For starters, here's a link to descriptions of the keynotes. And, you can check out the session descriptions …
ContinueAdded by Michael Levin on October 31, 2015 at 2:45pm — 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.

Netflix’s Kasia Trapszo discusses the transition from writing code to scaling organizations. She shares lessons on building trust through technical clarity, aligning teams to solve the "right" problems, and using intentional documentation to scale your judgment. Learn how to move beyond individual output to create a lasting architectural legacy that empowers others to make better decisions.
By Kasia Trapszo
GitHub has announced the general availability of secret scanning support through its MCP Server, extending automated credential detection and remediation capabilities into AI-assisted and agent-driven development workflows.
By Craig Risi
AdonisJS version 7 introduces end-to-end type safety and reworked starter kits, alongside improved documentation. The release includes 45+ updated packages and three new ones for OpenTelemetry, typed content. It requires Node.js 24, allowing the use of native APIs. The framework emphasizes a convention-over-configuration approach while offering tools for routing, ORM, and authentication.
By Daniel Curtis
Every time-series database makes a set of storage design decisions: how to lay out rows, when to compress, what to partition on. These decisions determine cost and query performance more than the choice of database itself. This article works through those fundamentals from first principles, using widely available tools like PostgreSQL and Apache Parquet to make each trade-off measurable.
By Nirmesh Khandelwal
Two recent Linux kernel vulnerabilities have been disclosed: Copy Fail (CVE-2026-31431) on April 29, 2026, and Dirty Frag (CVE-2026-43284 and CVE-2026-43500) on May 7, 2026. Both allow local users to gain root access, affecting multiple Linux distributions. These vulnerabilities exploit flaws in the page cache via different subsystems, necessitating immediate patching by affected organizations.
By Matt Saunders
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