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JavaSpecialists

Issue 302 - Virtual Thread Deadlocks

Virtual threads can deadlock, just like platform threads. Depending on what state they are in, this might be quite challenging to analyze. In this newsletter we explore some tricks on how to find and solve them.

Issue 301 - Gazillion Virtual Threads

As from this month, Project Loom is part of the mainstream OpenJDK as a preview feature. Expect fantastical results, as bloggers around the world kick the tyres of this fantastic technology. In this newsletter we show how we can have over 36 billion parked virtual threads in just 4 gigabytes of memory!

Issue 300 - Break in Switch With Pattern Matching

The enhanced switch is cool. Pattern Matching for switch is super cool (they even timed the JEP number to be exactly 420 - or was that fate?). But what happens when we use "break" inside the case statement? Let's find out.

Issue 299 - Synchronizing on Value-Based Classes

Locking on Integer objects has always been a bad idea. And we now have a way to find such bad code with a runtime switch DiagnoseSyncOnValueBasedClasses.

Issue 298 - Finding Permitted Subclasses

Sealed classes show us which subclasses they permitted. Unfortunately there is no way to do this recursively. In this newsletter we show how to navigate the sealed class hierarchy and write a ClassSpliterator that can then create a Stream of classes.


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Events

Blog Posts

RealityLabs ::: A great new Gainesville Florida experience!

Posted by Michael Levin on January 28, 2022 at 12:52pm 0 Comments

Hello lab volunteers and friends...

RealityLabs, the community computer lab sponsored by the Gainesville Counseling Center and located at the Highlands Community Center is making progress towards our grand opening in later this year. 

We need some board members to help steer the progress and efforts of the lab, please let me know if you are interested.  

We will meet from 10a - 4p this Saturday the 22nd with the hope to start or accomplish some or all of the items…

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Free Java conference not to miss!

Posted by Michael Levin on January 8, 2022 at 6:13pm 0 Comments

Join the 2022 JChampions Conference. January 20, 21, 24, & 25.

• More info: https://jchampionsconf.com
• Talks: https://jchampionsconf.com/speakers.html
• Free tickets: https://www.eventbrite.com/e/jchampions-conference-2022-tickets-231766418597

What are the top Web Development Technologies and Frameworks for 2021?

Posted by Tagline Infotech on December 29, 2021 at 10:56pm 0 Comments

What are the top Web Development company in USA Technologies and Frameworks for 2021? There are many new technologies coming out every year, but not all of them will be around by 2021. The following list of technologies and frameworks will continue to be popular in the coming years. Most of them are still very new, which makes it difficult to predict what will happen with…

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Next OJUG and GatorJUG Meetings will be fabulous - Check out the Codetown Events

Watch for details on our upcoming meetings. OrlandoJUG meeting's fall on the 4th Thursday of every month, in case you want to mark your calendars. Stay tuned for details! GatorJUG meets the 2nd Wednesday of every month.


The details are posted in the CodeTown Events section. Please RSVP so we'll know how much pizza to order. Stay tuned! ...Mike

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Be Careful What You Wish For

Interesting. Ask Elon Musk what scares him…Continue

Tags: Braintree, PayPal, kernal, google, neuralink

Started by Michael Levin in AI, ML & Big Data Aug 8, 2019.

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RealityLabs ::: A great new Gainesville Florida experience!

Hello lab volunteers and friends...RealityLabs, the community computer lab sponsored by the Gainesville Counseling Center and located at the Highlands Community Center is making progress towards our grand opening in later this year. We need some board members to help steer the progress and efforts of the lab, please let me know if you are interested.  We will meet from 10a - 4p this Saturday the 22nd with the hope to start or accomplish some or all of the items below:• Test the recent cable…See More
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What are the top Web Development Technologies and Frameworks for 2021?

What are the top Web Development company in USA Technologies and Frameworks for 2021? There are many new technologies coming out every year, but not all of them will be around by 2021. The following list of technologies and frameworks will continue to be popular in the coming years. Most of them are still very new, which makes it difficult to predict what will happen with them by 2021, but there is enough activity on GitHub to indicate that they are important technologies that deserve more…See More
Dec 29, 2021
Tagline Infotech is now a member of Codetown
Dec 29, 2021
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This FREE online Java conference is tomorrow!

This FREE online Java conference is tomorrow!Visit https://www.accelevents.com/e/2021jconfdev to see the full agenda for the day as well as all session descriptions and speaker bios. It's free so no need for FOMO. The conference runs from 9:00 PM CST to 5:00 PM CST (3:00 PM UDT - 11:00 PM UDTSee More
Dec 8, 2021
Florence Vicil replied to Andrew DiRocco's discussion 50+ developers needed in Orlando - Long term career choice, not to be viewed as a gig in the group Jobs
"Hello. What is your need for Java developers by the beginning of the year next year? Thank you."
Nov 11, 2021
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AITP-NCFL October 2021 presenation: " AITP-NCFL October 2021 Presentation "5 Great Tips for Giving Great Presentations" at Zoom

October 19, 2021 from 6:30pm to 8pm
For our October presentation, we are delighted to host Terry Martin-Back presenting "5 Great Tips for Giving Great Presentations". The presentation will be held on Tuesday, October 19, 2021 from 7 to 8 PM via this Zoom meeting. See full information here.See More
Oct 15, 2021
 
 
 

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…
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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

Meta's Genomics AI ESMFold Predicts Protein Structure 6x Faster Than AlphaFold2

Meta AI Research recently announced ESMFold, an AI model for predicting protein structure from a sequence of genes. ESMFold is built on a 15B parameter Transform model and achieves accuracy comparable to other state-of-the-art models with an order-of-magnitude inference time speedup.

By Anthony Alford

Article: Infrastructure as a Code—Why Drift Management Is Not Enough

The reality is that configuration drift will remain unavoidable for the foreseeable future. An EaaS solution, coupled with an IaC platform and good change management policies will help you prevent drift and shorten your development cycles.

By Roxana Ciobanu

AWS Announced Tiered Pricing for Its Serverless Offering Lambda

Recently, AWS announced tiered pricing for Lambda, a serverless, event-driven compute service allowing developers to run their code for virtually any application or backend service without provisioning or managing servers. With tiered pricing, monthly costs for running large workloads on Lambda can be reduced.

By Steef-Jan Wiggers

Mini book: The InfoQ eMag - The Cloud Operating Model

In this eMag, you will be introduced to the Cloud Operating Model and learn how to avoid critical pitfalls. We’ve hand-picked four full-length articles to showcase that.

By InfoQ

Podcast: Enabling a Collaborative and Welcoming Open Source Community

In this podcast, Shane Hastie spoke to Eric Arellano, Nick Grisafi and Josh Cannon of the Pants open source community about creating and maintaining an inclusive and supportive environment and developer experience.

By Eric Arellano, Nick Grisafi, Josh Cannon

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