All Blog Posts (369)

So long, old friend...

Added by Michael Levin on January 21, 2010 at 6:15pm — 3 Comments

Why Clojure?



My bud Matt Raible blogged about reading a Scala book and I mentioned Stuart Holloway's… Continue

Added by Michael Levin on January 16, 2010 at 11:00am — 2 Comments

GatorJUG Recap - January 2010



Here's a recap of last night's meeting.



Eric Lavigne won the first CodeTown Coding Contest using Clojure to develop a web based Wari game. Personally, I had an 'aha moment' during Eric's explanation of functional programming. His unbelievably good implementation of the game as a web app was done in only 100 lines of code.…



Continue

Added by Michael Levin on January 14, 2010 at 9:30am — No Comments

Java EE 6 "one-week" Online Codecamp (Jan. 12th-20th, 2010)

As a follow-on to the "Java EE 6 and GlassFish v3" Virtual

Conference below



http://www.sun.com/events/javaee6glassfishv3/virtualconferenc/index...



Alexis, Antonio, Arun, and Sang Shin would like invite

every Java developer to the free Java EE 6 "one-week" long

online codecamp, which is scheduled to occur during the period

of Jan. 12th (Tuesday) to Jan. 20th,… Continue

Added by Michael Levin on January 9, 2010 at 4:34pm — No Comments

Did you say JUG? Java User...What?

Is it still possible to ask this question in 2010?



Isn’t the answer obvious ?



Well no ! It was the question I was asking myself three years ago, even though I had been working as a consultant and Java trainer for seven years. In 2007, my ex-colleague Éric Marcoux (Oracle ACE Director) suggested I join JUG Québec (Canada). I said JUG ? Java User…What ?



Several months later, I went to JavaOne 2008 and… Continue

Added by Max Bonbhel on January 9, 2010 at 12:30am — No Comments

Share Your Ideas ::: Folder URL Shortener



Have a great idea? Better keep it to yourself. Someone else will snatch it up and do it if you tell! On the other hand, how many great ideas go undone? So, do the right thing. If you have a great idea, tell the world. There's room for everyone. It's especially right to tell if you're not sure you can execute the idea. You can always build a better mousetrap later.



URL Shorteners are all the rage. Check out… Continue

Added by Michael Levin on January 5, 2010 at 11:00am — 1 Comment

Instant Runoff Voting - Contest #2





Instant Runoff Voting (IRV) is a fascinating way to run an election. The basic idea is that voters rank the candidates and the votes for the least popular candidate are automatically moved to the remaining candidates until one is selected winner.

Ready for the challenge? Read the… Continue

Added by Michael Levin on January 3, 2010 at 3:30pm — No Comments

Attending Campus Crusade's Midsouth Conference...

It's the first time I have ever attended a Christian conference where twitter was being used so much during the conference. Usually I don't equate twitter with a Christian conference, but Campus Crusade's midsouth conference is certainly an exception. From the beginning of the conference to the end, participants were tweeting all kind of stuff all the time.

Added by Bradlee Sargent on December 31, 2009 at 5:47pm — 1 Comment

Happy New Year



Happy New Year! What a year 2009 has been. 2010 is surely looking like an exciting time to come.



What are your thoughts about CodeTown? Is it the software community you hope for? If you have comments or suggestions, please let me know. You can post them here as comments or send me a private message.



Thanks for your contributions to CodeTown this year. It's growing, and becoming more interesting with every post you make,… Continue

Added by Michael Levin on December 31, 2009 at 3:30pm — 6 Comments

Umbrella Java User Group AFRICA

I have just created JUG-AFRICA wich will be an umbrella Java User Group (JUG) for the entire continent that country JUGs or individual JUGs can affiliate with.

Like Congo JUG, Togo JUG, RDC-JUG (Kinshasa) and Cameroon JUG are on the track to join JUG-AFRICA.



Why JUG-AFRICA ?



The idea behind JUG-AFRICA is to allow JUGs located within Africa to collaborate globally in ways that will ultimately benefit Java… Continue

Added by Max Bonbhel on December 30, 2009 at 5:03pm — No Comments

Amazon: Kindle Books Outsold Real Books This Christmas



Wired: "Happy Christmas. I got a coffee pot. You? If you got a book, it’s likely that it wasn’t made of paper. The succinct title of this Amazon press release tells the whole story: “On Christmas… Continue

Added by Michael Levin on December 29, 2009 at 12:30pm — No Comments

Contest Town Coding Contest #1 - Eric Lavigne using Clojure is Winner!



Codetown, we have a winner! Check out Eric Lavigne's winning entry to the first Codetown Coding Contest here...



Eric will describe his code at the next GatorJUG meeting. Eric tells us that he'll give a presentation on Clojure tomorrow at the next Gainesville Ruby User Group meeting (GRUG… Continue

Added by Michael Levin on December 28, 2009 at 1:07pm — No Comments

Delve into Dot Net Town



Yep, it was bound to happen. Curiosity set in and I looked to see how much this new Windows 7 thang is running. $29.95 ain't too bad. But, as we all know, that's just the beginning. The first gram is free. You and I both know that installing a new release leads to more serious drugs. I mean, apps. I mean...you know what I mean.



Anyhoo, last time I worked with Visual Studio it was pretty impressive. Visual Studio 2010 is out in beta,… Continue

Added by Michael Levin on December 25, 2009 at 3:00pm — No Comments

Looking for Java/Groovy developers for help with an Opensource Project

Hey everyone just throwing it out there,



The other day I was on the beach wondering what to do next when I came up with an interesting idea, a social networking aggregator that could add content to a Wave document in real time(of course then I got extended). It now looks like I can make it happen and I am trying to start finding more people to help the project. Currently we could use someone to manage a JIRA server as well as other developers. Currently the project is in Java,… Continue

Added by Jackie Gleason on December 18, 2009 at 5:00pm — 4 Comments

Google releases Public DNS

Google just announced a public DNS. Cmments?

Added by Michael Levin on December 4, 2009 at 11:00am — No Comments

What is Google Wave?



I've been nominated to be a beta user. Anyone working with the Wave yet?… Continue

Added by Michael Levin on December 4, 2009 at 10:00am — No Comments

Java - Where to Begin...



I'm looking for suggestions on how I can get myself up to a reasonable level of

competence in Java. What would you recommend? I'm open to any ideas, from

self-taught methods to paid training and/or certification/degree paths.





The Jacksonville JUG mailing list has a… Continue

Added by Michael Levin on November 14, 2009 at 7:00am — No Comments

Java EE 6 and GlassFish v3: Paving the path for future



Arun Gupta of Sun recently gave a presentation on JEE and Glassfish at the Silicon Valley Codecamp '09. Read the rest here...in JEE Town.

Added by Michael Levin on November 4, 2009 at 3:40am — No Comments

Wikipedia Place


We just had Brion Vibber in town and he gave a talk for the OrlandoJUG - so many of you couldn't attend the talk. And, lots of questions resulted from the discussions. There's a group here on Codetown we're calling Wikipedia Place to capture this info. Join in!

Added by Michael Levin on November 2, 2009 at 5:29am — No Comments

PingMe - Brainstorming!


I'm doing some brainstorming and want your input: read about it here, on my Swampcast blog.

Added by Michael Levin on October 20, 2009 at 11:00am — No Comments

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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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InfoQ Reading List

Presentation: When Every Bit Counts: How Valkey Rebuilt Its Hashtable for Modern Hardware

Madelyn Olson discusses the evolution of Valkey's data structures, moving away from "textbook" pointer-chasing HashMaps to more cache-aware designs. She explains the implementation of "Swedish" tables to maximize memory density. She shares insights on systems intuition, memory prefetching, and the rigorous testing needed for mission-critical caches.

By Madelyn Olson

Istio Evolves for the AI Era with Multicluster, Ambient Mode, and Inference Capabilities

The Cloud Native Computing Foundation (CNCF) has announced a major evolution of Istio, introducing new capabilities aimed at making service meshes “future-ready” for AI-driven workloads.

By Craig Risi

Article: Bloom Filters: Theory, Engineering Trade‑offs, and Implementation in Go

This article walks you through the Go implementation of Bloom filters to optimize the performance of a recommender. It cover the architectural view, Bloom filter mechanics, Go integration, parameter tuning, and practical lessons learned from making it work under production constraints.

By Gabor Koos

Google Open Sources Experimental Multi-Agent Orchestration Testbed Scion

Designed to manage concurrent agents running in containers across local and remote compute, Scion is an experimental orchestration testbed that enables developers to run groups of specialized agents with isolated identities, credentials, and shared workspaces.

By Sergio De Simone

Anthropic Accidentally Exposes Claude Code Source via npm Source Map File

Anthropic's Claude Code CLI had its full TypeScript source exposed after a source map file was accidentally included in version 2.1.88 of its npm package. The 512,000-line codebase was archived to GitHub within hours. Anthropic called it a packaging error caused by human error. The leak revealed unreleased features, internal model codenames, and multi-agent orchestration architecture.

By Steef-Jan Wiggers

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