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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: Jul 21, 2019

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

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.

New jobs in Tampa

Hey y'all!There are 2 new jobs posted in the Jobs group. These are contract to hire and they look great. Check 'em out. Best,MikeContinue

Started by Michael Levin Jun 13, 2018.

Reading List ::: from JavaSpecialists

Issue 282 - Biased locking a goner, but better things Loom ahead

Biased locking has made unnecessary mutexes cheap for over a decade. However, it is disabled by default in Java 15, slated for removal. From Java 15 onwards we should be more diligent to avoid synchronized in places where we do not need it.

Issue 281 - Puzzle 2: Is it garbage?

In our next puzzle, we up the ante a bit. We prevent GC during the test() method by storing a strong reference to all our Vectors. Cock and bull story, or are we struggling to identity our biases?

Issue 280 - Puzzle: What's up with Vector?

For today's puzzle, we are getting elements from Vector, sequentially and in parallel. But why is the performance so much worse in Java 15-ea+28?

Issue 279 - Upgrading ReadWriteLock

The Java ReentrantReadWriteLock can never ever upgrade a read lock to a write lock. Kotlin's extension function ReentrantReadWriteLock.write() cheats a bit by letting go of the read lock before upgrading, thus opening the door for race conditions. A better solution is StampedLock, which has a method to try to convert the lock to a write lock.

Issue 278 - Free Memory

How much memory was wasted when an additional boolean field was added to java.lang.String in Java 13? None at all. This article explains why.

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.

Looking for Jobs or Staff?

Check out the Codetown Jobs group.

There's also a free Java Jobs mailing list. It's a Yahoo group so you have to create a Yahoo account to use it.

 

Enjoy the site? Support Codetown with your donation.



InfoQ Reading List

Presentation: Managing for Serendipity

Liz Keogh looks at how innovation often happens through unexpected side-effects, and some different strategies for approaching complex ecosystems, allowing new ideas to emerge.

By Liz Keogh

InfoQ Live Virtual Event on Aug 25th: Session Spotlights and Roundtables

The inaugural InfoQ Live (Aug 25th) is a one-day virtual learning event that deep-dives into building and operating microservices and distributed systems. Discover practical strategies for the current environment that you can put into use straight away. Join world-class practitioners for inspiration, connections, and actionable ideas. See the InfoQ Live full schedule and the speaker line-up.

By Adelina Turcu

Article: PHP 7 — Improvements to Arrays, Operators, Constants, and Exception Handling

In this final article on the series on new features in PHP 7.x, we shall discuss improvements to arrays, operators, constants, and exception handling.

By Deepak Vohra

Podcast: Ana Medina on Chaos Engineering, Game Days, and Learning

In this podcast, Ana Medina discussed with Daniel Bryant about how enterprise organisations are adopting chaos engineering with the requirements for guardrails and the need for “status checks” to ensure pre-experiment system health; how to run game days or IT fire drills when everyone is working remotely; and why teams should continually invest in learning from past incidents.

By Ana Medina

AWS Releases Amazon Fraud Detector into General Availability

Amazon Fraud Detector is a fully-managed service on AWS providing customers with the capability to quickly identify potentially fraudulent online activities, such as the creation of fake accounts, loyalty account and promotion code abuse or online payment fraud. The service uses machine learning (ML) and relies on two decades of fraud detection expertise from AWS and Amazon.com.

By Steef-Jan Wiggers

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