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Michael Levin's Blog (285)
New Java features
August 28 2025, Newsletter no. 297 (this newsletter is available in html format at http://www.javaperformancetuning.com/news/news297.shtml )
As usual before a Java release, I'm listing all the new…
Added by Michael Levin on August 29, 2025 at 5:32pm — No Comments
Free Eclipse book, recently published
ContinueHi Everyone,My publisher is running a free Amazon Kindle book promotion through Monday, August 25th, 2025. The book, “Eclipse Collections Categorically: Level up your programming game” can be obtained for $0 on Kindle on Amazon through the August 25th.…
Added by Michael Levin on August 24, 2025 at 11:59am — No Comments
What is vibe coding?
Vibe coding isn’t a formal technical term, but it’s become a slang or colloquial expression among programmers and tech communities—especially on social media and in creative coding circles.
What “vibe coding” usually means:
- Coding based on intuition or feel
Instead of rigidly planning everything out, you’re:- Freestyling as you…
Added by Michael Levin on June 9, 2025 at 9:37am — No Comments
You can now download the source code that sparked the AI boom
Learning about artificial intelligence? You may find this interesting.
https://arstechnica.com/ai/2025/03/you-can-now-download-the-source-code-that-sparked-the-ai-boom/
Added by Michael Levin on March 25, 2025 at 4:30am — No Comments
Software language criteria
https://www.linkedin.com/posts/skills-software-development_as-a-software-developer-selecting-the-appropriate-ugcPost-7125938686818467840-pp_V?utm_source=share&utm_medium=member_ios
Added by Michael Levin on December 1, 2023 at 3:48am — No Comments
We have some exciting news to share with you. Otavio will be joining us to discuss the latest version of Camel in an exclusive presentation. Presentation Details: Speaker: Otavio Rodolfo Piske Topic:…
We have some exciting news to share with you. Otavio will be joining us to discuss the latest version of Camel in an exclusive presentation.
Presentation Details:
Speaker: Otavio Rodolfo Piske
Topic: Camel 4:What to Expect
Date: 07 September 2023
Time: 19:00 Ist Time
Duration: Approximately 1 hour
Register URL : https://www.eventbrite.com/e/700456483197
Presentation…
ContinueAdded by Michael Levin on September 2, 2023 at 9:21am — No Comments
Software defined radio…cool!
Added by Michael Levin on June 21, 2023 at 10:29am — No Comments
A Pattern Language
Added by Michael Levin on March 4, 2023 at 6:00pm — No Comments
Podcast ::: Age of Wonders: NFTs, Art, AI, Cycles of Computing
Added by Michael Levin on October 14, 2022 at 6:00am — No Comments
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…
ContinueAdded by Michael Levin on January 28, 2022 at 12:52pm — No Comments
Free Java conference not to miss!
• More info: https://jchampionsconf.com
• Talks: https://jchampionsconf.com/speakers.html
• Free tickets: https://www.eventbrite.com/e/jchampions-conference-2022-tickets-231766418597
Added by Michael Levin on January 8, 2022 at 6:13pm — No Comments
Log4J Security Issue
Added by Michael Levin on December 12, 2021 at 8:09am — No Comments
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 UDT
Added by Michael Levin on December 8, 2021 at 11:51am — No Comments
The 2021 JakartaEE Developer Survey is now open!
https://www.surveymonkey.com/r/FD2GWM8
Added by Michael Levin on April 16, 2021 at 10:39am — No Comments
J4K is virtual this year...and free!
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 will go fast. #j4k
Added by Michael Levin on July 2, 2020 at 6:52pm — No Comments
Dev Dot Next Webinar!
https://www.devdotnext.com/digital
Oracle is hosting a webinar on Java 14 next Thursday, 26 March from 2-2:30 pm EDT, which will cover some of the new features:…
Continue
Added by Michael Levin on March 24, 2020 at 7:44am — No Comments
Hackathon
“Hey Mike, I am helping organize an upcoming hackathon at Palm Coast City hall and want to invite your group of devs to attend and compete. There is a $12k prize pool as well as raffle prizes and free food all weekend long. This is a free event and any and all experience is welcome to come check it out. The event website is TechBeachHackathon.com for all the details.”
Added by Michael Levin on January 11, 2020 at 2:06am — No Comments
Swampcast features Tim Westergren, Pandora CEO
Join Michael Levin in this Swampcast interview with Tim Westergren, Pandora CEO. Click here to listen. Photo…
Added by Michael Levin on August 3, 2019 at 12:30pm — No Comments
Latest Blog Posts
- New Java features
- Free Eclipse book, recently published
- What is vibe coding?
- You can now download the source code that sparked the AI boom
- Software language criteria
- We have some exciting news to share with you. Otavio will be joining us to discuss the latest version of Camel in an exclusive presentation. Presentation Details: Speaker: Otavio Rodolfo Piske Topic:…
- Software defined radio…cool!
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2008
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
30+ Updates per Second per Account: Uber Scales Ledger Processing with Batching
Uber introduced a high-throughput financial ledger processing system designed to handle hot account write contention at scale. Using 250ms batching, Redis coordination, and optimistic atomic updates, the system supports 30+ updates per second per account while preserving consistency and auditability, reducing multi-hour processing pipelines to minutes in its distributed accounting infrastructure.
By Leela KumiliHow a Culture of Data-Driven Conversations Can Support Platform Engineering
To provide SRE as a service, a team built a center of excellence, introducing Federated SREs and roles like production manager and technical tribe lead. They created a culture of data-driven conversations where SLOs and SLAs were democratised. Surviving growing cognitive load meant continuously simplifying architecture and embedding sovereignty and resilience into platform design decisions.
By Ben LindersPresentation: Architecting a Centralized Platform for Data Deletion at Netflix
The speakers discuss the architectural challenges of executing safe data deletion across distributed datastores. Balancing durability, availability & correctness, they explain how to orchestrate multi-system deletion propagation without impacting live traffic. They share lessons on controlling tombstone accumulation, building continuous audit loops, and gaining trust with a centralized platform.
By Vidhya Arvind, Shawn LiuArticle: Architectural Change Cases: A Practical Tool for Evolutionary Architectures
Architectural change cases extend architecture decision record (ADR) thinking by evaluating how decisions may evolve over time. Change cases expose hidden assumptions and help teams estimate the reversibility and cost of change.
By Pierre Pureur, Kurt BittnerAWS Replaces Fat-Tree Data Center Networks with Random Graph Theory, Cutting Routers by 69%
AWS disclosed that Resilient Network Graphs, a flat network architecture based on quasi-random graph theory, is now the default for most new data center builds. The design replaces fat-tree hierarchies with direct ToR-to-ToR mesh connections using passive optical ShuffleBoxes, cutting routers by 69%, boosting throughput by 33%, and reducing network power consumption by 40%.
By Steef-Jan Wiggers
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