Information

GatorJUG Town

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

Shale boulders

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

Tags: codetown, oscon

Started by Michael Levin Jun 15, 2018.

Reading List ::: from JavaSpecialists

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.

Issue 318 - Getting Rid of Unused Warnings with _

We sometimes are forced by the Java language to declare variables that we never use, attracting the ire of the javac compiler. Since Java 22 we have a way to declare these as "unnamed" by using an underscore.

Issue 317 - Explicit vs Diagnostic GC

How many times have we seen programmers call System.gc() to "help the garbage collector"? Unfortunately far too often, with potentially terrible performance implications. In this newsletter we explore the explicit and the diagnostic GC and how we can force a GC, even if explicit GCs are disabled.

Comment Wall

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Comment by Michael Levin on May 8, 2015 at 1:09pm

GatorJUG meets on the 2nd Wed every month from 6-8PM. Details at http://www.codetown.com/events

 

Members (30)

 
 
 

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.

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…
Continue

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

Dropbox’s Asynchronous Platform Evolution: From Challenges to a Unified Messaging System Model

Dropbox, a file sharing cloud platform recently discussed their Messaging System Model (MSM) that supports diverse use cases and handles over 30 million tasks per minute.

By Aditya Kulkarni

Article: 2025 Article Contest: Win Your Conference Ticket

The InfoQ Team is excited to invite you to participate in our annual article writing competition. Authors of top-rated articles will win complimentary tickets to prominent software development conferences such as QCon and InfoQ Dev Summit.

By InfoQ

Article: Eclipse LMOS: Launching AI Agents Across Europe at Breakneck Speed

In this talk, the authors share some of our company’s key learnings in developing customer-facing LLM-powered applications deployed across Europe. They used multi-agent architecture and systems design to create an open-source set of tools, a framework, and a full-fledged platform to accelerate the development of AI agents. This is a summary of a presentation from InfoQ Dev Summit Boston 2024.

By Arun Joseph, Patrick Whelan

Podcast: Your Software Will Fail, It is How You Recover That Matters: A Conversation with Randy Shoup

In this podcast Michael Stiefel spoke with Randy Shoup about how to build resilient systems. We discuss why it is a serious mistake to fail to acknowledge that software’s interaction with itself. We also discuss where to use workflows, orchestration or choreography, the role of architecture in building good teams, and the wisdom of letting each team use their own set of tools.

By Randy Shoup

DevProxy 0.24 Adds More OpenAPI Options

Microsoft has released version 0.24 of DevProxy, an API simulation command-line tool. The new version improves its compatibility with different OpenAPI specifications and adds a few improvements for daily tasks.

By Edin Kapić

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