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OrlandoJUG Town
Information
Calling all Java lovers! The OrlandoJUG features leading edge presentations with you in mind. We meet every month with talks on interesting aspects of programming in Java. Although we're Java-focused, you'll also learn about other JVM languages.
Twitter & Facebook @orlandojug
Check the Codetown Events section for specifics about meetings.
Website: http://www.orlandojug.org
Location: Orlando, FL
Members: 96
Latest Activity: Feb 23, 2021
About the OrlandoJUG
Check the Codetown Events section for meeting info. Please RSVP!
* There are no membership fees for joining the Club or participating as a member. Operating costs will be borne by Contributing Sponsor companies (Contributing Sponsors).
* However, membership is not "free" because everyone is asked to contribute time and talent for the benefit of all members. Please volunteer to serve on the committee of your choice.
* The membership list and contact information will not be for public use. Telephone numbers and e-mail addresses will be held in strict confidence. Members are, of course, free to trade contact information one-on-one.
* As a general rule, meetings are held monthly, usually on the 4th Thursday of the month.
* Michael Levin is the JUG chair. Anyone wishing to provide a venue, refreshments or a program speaker/topic should contact him at info (at) orlandojug (dot) org
* There is an open-door policy. All committee and planning meetings are open to all members.
* Constructive criticism and good ideas are invited. We will strive to improve OrlandoJUG on a constant, consistent basis. Your active involvement and support is vitally important to the success of the Club
Our meetings will be listed in the Events section.
Discussion Forum
Meet with a Superb Recruiter 1 Reply
Started by Michael Levin. Last reply by Andrew DiRocco Feb 23, 2021.
J4K is virtual this year!
J4K was a superb conference last year. This year, it’s virtual and free! Some of the world’s best speakers will present. Register here: http://j4k.io/ They say tickets…Continue
Started by Michael Levin Jul 2, 2020.
Virtual Events
Hello! I hope you all are well. I’m staying home for a while, but the Virtual Java User Group and JaxJUG have interesting online events coming up this week. Stay tuned. ...Mike
Started by Michael Levin May 11, 2020.
February Meetup! 3 Replies
We have an awesome speaker lined up this Th. Interested? You have to tell me you’re interested or I won’t schedule it. Venue near Ace Cafe!Continue
Started by Michael Levin. Last reply by Naomi Butterfield Feb 27, 2020.
October OJUG
Folks, I’m giving a talk on AI at Devoxx next month in Morocco. Our scheduled Spring talk is postponed. Let me know if you’d like a preview of my AI talk instead. We don’t meet Nov/Dec. Here’s the…Continue
Started by Michael Levin Oct 18, 2019.
Live OrlandoJUG broadcast tonight
Tonight’s Orlandojug will be broadcast live! Monitor @OrlandoJUG on…Continue
Started by Michael Levin Sep 27, 2019.
September OJUG
Join me at OJUG ::: featuring Bruno Souza & Otavio Santana from Brazil! http://meetu.ps/e/H1Rlw/1sqG/aContinue
Tags: Ojug
Started by Michael Levin Sep 17, 2019.
Red Hat Open Shift Workshop 8/21 Orlando Marriott
Hi Michael,Wanted to send you a reminder for next Wednesday's Red Hat OpenShift workshop. We are excited to see you! Date: August 21st, 2019Time: 9am-2pmLocation: Marriott Orlando Downtown (…Continue
Tags: OrlandoJUG, codetown, Redhat
Started by Michael Levin Aug 15, 2019.
OJUG ::: Git with Rusty 8/22
Join us for a Git presentation…Continue
Tags: git, rusty, codetown, orlandojug
Started by Michael Levin Aug 7, 2019.
DevNexus CFP open until Aug 15
THE DEVNEXUS CALL FOR PAPERS IS OPEN UNTIL AUGUST 15!!! The Call for Papers (CFP) for Devnexus 2020 is now open. Devnexus, …Continue
Started by Michael Levin Aug 5, 2019.
OrlandoJUG Reading List ::: from JavaSpecialists
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.Issue 316 - Code Before super() - JEP 447
Java 22 preview allows us to write code before the call to super(). There are restrictions. We are not allowed to refer to "this" in any way. We thus cannot set fields before calling the superclass constructor. But what if the superclass constructor calls our methods? In this newsletter we explore a workaround using ThreadLocals.Comment Wall
Comment
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Comment by Michael Levin on July 17, 2018 at 1:56pm
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OrlandoJUG meets every 4th Thursday from 6-8PM. Details about our next meeting are here: http://www.codetown.com/events
Please RSVP so we’ll know how much pizza to order.
If you want to get email about meetings, join this group.
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.
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InfoQ Reading List
Inside Netflix’s Distributed Counter: Scalable, Accurate, and Real-Time Counting at Global Scale
Netflix engineers recently published a deep dive into their Distributed Counter Abstraction, a scalable service designed to track user interactions, feature usage, and business performance metrics with low latency. The system balances performance, accuracy, and cost through configurable counting modes, resilient data aggregation, and a globally distributed architecture.
By Eran StillerAmazon S3 Introduces Metadata Feature for Improved Data Management and Querying in Preview
Amazon Web Services (AWS) has launched S3 Metadata, enhancing data management for S3 users. This new capability enables near real-time querying and analysis of S3 data via organized metadata updates. By adopting Apache Iceberg, it ensures interoperability and scalability, allowing businesses to efficiently leverage their data for analytics and AI applications.
By Steef-Jan WiggersQCon SF 2024: Refactoring Large, Stubborn Codebases
Jake Zimmerman, Technical Lead of Sorbet at Stripe, and Getty Ritter, Ruby Infrastructure Engineer at Stripe, presented Refactoring Stubborn, Legacy Codebases at the 2024 QCon San Francisco conference. Zimmerman and Ritter demonstrated how to fix complaints on maintaining a large codebase with leverage and by ratcheting incremental progress.
By Michael RedlichKotlin Reaches 2.1.0, Bringing New Language Features, Compiler Updates, and More
Kotlin 2.1.0 introduces new syntax, including guard conditions, non-local break and continue, and multi-dollar string interpolation. Additionally, it extends its multiplatform capabilities and improves the K2 compiler.
By Sergio De SimoneArticle: Beat the Plan: Probabilistic Strategies for Successful Software Delivery at Scale
Large-scale software delivery demands managing complexity across teams and organizations. Similarly to betting strategies in Vegas, embracing probabilistic thinking helps tackle uncertainty, shifting from rigid plans to adaptive systems. By making informed bets and designing for change, leaders can control volatility, respond to evolving conditions, and drive success in dynamic environments.
By John Rauser
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