Codetown
Codetown ::: a software developer's community
GatorJUG Town
Information
Gainesville JUG, this is your place. Gather here to network, trade tips and ideas, or ask questions. You can create discussions and upload code. Check the Codetown Events section for meeting info.
Location: Gainesville, FL
Members: 30
Latest Activity: Feb 25, 2021
GatorJUG Town
Hello, GatorJUG!
Welcome to your new home on the web. This is going to be a much more sociable place to get together - virtually. www.gatorjug.org, points here now. Check the Codetown Events section for meeting info.
Meanwhile, take a look around CodeTown while you're here. This framework is Java-based with a PHP front end. We've got many groups here to peruse. Our meetings will be listed in the Events section.
Have fun!
All the best,
Michael Levin
Discussion Forum
JUG Meeting in Orlando tonite!
We're having a JUG meeting tonight if you know anyone interested. Eden Bar, 5:30-7:30. Free bevs! It’s in Orlando. Details here: www.Orlandojug.org and at the Ojug meetup site.Continue
Started by Michael Levin Feb 25, 2021.
J4K Conference —- here’s a code for free admission!
OrlandoJUG is a community partner for the J4K conf @ Hilton Buena Vista Orlando 7/30 Use code J4KREG for free admission www.j4k.io See you there!Continue
Tags: J4k
Started by Michael Levin Jul 21, 2019.
OSCON raffle!
Hello Juggies!Have you ever been to OSCON? It’s the O’Reilly Open Source Conference. If you have, you wanna go back! If not, you wanna go!OSCON is arguably the best open source conference around. It’s in Portland, OR (awesome city), July 15-18 and we are lucky to have one ticket to raffle off!Flights are cheap. Check Southwest. Places to stay are abundant. Great hostels and hotels, Airbnb’s and more. Public xport is easy. It’s a bicyclist’s dream, too.OSCON has great sessions on everything from languages to operating systems, architecture to project management. There’s an expo with loads of companies and it’s also a good place to network for jobs and staff.After hours is also a blast with happy hours, activities like a fun run, more!If you’re interested in checking it out, http://www.oscon.com is the URL. You also get access to Safari, the online book library.All in all, it’s the best educational and social experiment I know of, and if you want to…Continue
Started by Michael Levin May 31, 2019.
O'Reilly Open Source Convention | July 16–19, 2018 | Portland, Oregon
O'Reilly Open Source Convention | July 16–19, 2018 | Portland, Oregon OSCON didn’t get to be the longest running software conference by accident. Developers, engineers, and business leaders like you who build and support transformative technologies make OSCON the heartbeat of the movement. Join us in Portland July 16-19 for our 20 year anniversary for perspective on the decisions that strengthen and grow companies, deep knowledge of the technology to make it happen, and access to a community that can help both you and your organization thrive.Save 20% on most passes with discount code USRG. Link: http://www.oreilly.com/pub/cpc/125414Continue
Started by Michael Levin Jun 15, 2018.
Reading List ::: from JavaSpecialists
Issue 323 - Visiting All Threads (Including Virtual)
In this newsletter, we explore how we can visit the entire hierarchy of threads in our virtual machine, including virtual threads. We do this using the composite, visitor and facade design patterns.Issue 322 - Throwing InterruptedException Early
The LinkedBlockingQueue and LinkedBlockingDeque behave slightly differently when methods put() and take() are called by a thread that happens to be in the "interrupted" state. The LBQ throws an InterruptedException immediately when we call take(), even if the queue contains elements. The LBD, however, only throws InterruptedException if the deque is empty and the thread would enter the WAITING state. In this newsletter we show how a dynamic proxy can make the behaviour consistent.Issue 321 - StampedLock ReadWriteLock Dangers
ReentrantReadWriteLock has a limit of 65536 concurrent read locks. That is an unattainable number with platform threads, but definitely achievable with virtual threads. In this newsletter we explore some of the issues if we want to switch to the StampedLock.asReadWriteLock() instead.Issue 320 - Please Don't Yield A Lot
Java's Thread.yield() traditionally would cause a voluntary context switch. However, with virtual threads, it causes the thread to be unmounted from its carrier thread. This can greatly increase the user and system time for ALL the carrier threads. And there is no way to turn it off. Keep an eye out for yield in your thread dumps.Issue 319 - ArrayBlockingQueue: Weakly Consistent Iteration Powered by Weak References
Like many other concurrent collections, the ArrayBlockingQueue sports a weakly-consistent iterator. However, the ArrayBlockingQueue always has a maximum capacity, the length of the underlying array. In this newsletter we explore what happens to pending iterators when we wrap around the circular array.Comment Wall
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Comment by Michael Levin on May 8, 2015 at 1:09pm
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GatorJUG meets on the 2nd Wed every month from 6-8PM. Details at http://www.codetown.com/events
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.
Created by Michael Levin Dec 18, 2008 at 6:56pm. Last updated by Michael Levin May 4, 2018.
Looking for Jobs or Staff?
Check out the Codetown Jobs group.
InfoQ Reading List
Microsoft Native 1-Bit LLM Could Bring Efficient genAI to Everyday CPUs
In a recent paper, Microsoft researchers described BitNet b1.58 2B4T, the first LLM to be natively trained using "1-bit" (technically, 1-trit) weights, rather than being quantized from a model trained with floating point weights. According to Microsoft, the model delivers performance comparable to full-precision LLMs of similar size at a fraction of the computation cost and hardware requirements.
By Sergio De SimoneFast Eventual Consistency: Inside Corrosion, the Distributed System Powering Fly.io
Innovative cloud solutions expert Somtochi Onyekwere recently presented at QCon London 2025, unveiling Corrosion—Fly.io's advanced open-source distributed system. By leveraging CRDTs and Rust, Corrosion enhances scalability and data synchronization, addressing latency challenges and ensuring rapid, consistent application deployment across a global network of 40+ regions.
By Steef-Jan WiggersArticle: Renovate to Innovate: Fundamentals of Transforming Legacy Architecture
Rashmi Venugopal explores the inevitability of legacy systems in successful companies and the importance of transforming legacy systems to accelerate innovation. Rashmi discusses various strategies to tackle such technical renovation initiatives, like evolutionary architecture, deprecation-driven development, and intentional organization design.
By Rashmi VenugopalAmazon Q and Claude Code Let AI Control the Developer CLI
AWS recently announced an enhanced CLI (command-line interface) agent for Amazon Q Developer with advanced agentic capabilities. This upgrade allows developers to work with AI directly in their terminal. Meanwhile, Anthropic has launched Claude Code as a research preview. It is a terminal-based coding assistant that allows developers to work directly with Claude from the command line.
By Matt Saunders.NET Aspire 9.2 Released with Expanded Deployment Options and Dashboard Improvements
The .NET team has released version 9.2 of .NET Aspire, introducing updates to the dashboard experience, new integration capabilities, and deployment improvements. As stated in the official announcement, this release furthers the platform’s goal of simplifying application development and cloud-native deployment workflows.
By Almir Vuk
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