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Pebble Watch software is now 100% open source

https://ericmigi.com/blog/pebble-watch-software-is-now-100percent-open-source
755•Larrikin•9h ago•120 comments

Unpowered SSDs slowly lose data

https://www.xda-developers.com/your-unpowered-ssd-is-slowly-losing-your-data/
260•amichail•8h ago•111 comments

Claude Advanced Tool Use

https://www.anthropic.com/engineering/advanced-tool-use
395•lebovic•8h ago•149 comments

Cool-retro-term: terminal emulator which mimics look and feel of CRTs

https://github.com/Swordfish90/cool-retro-term
183•michalpleban•10h ago•73 comments

Show HN: I built an interactive HN Simulator

https://news.ysimulator.run/news
201•johnsillings•10h ago•110 comments

Build a Compiler in Five Projects

https://kmicinski.com/functional-programming/2025/11/23/build-a-language/
47•azhenley•20h ago•7 comments

Claude Opus 4.5

https://www.anthropic.com/news/claude-opus-4-5
819•adocomplete•9h ago•374 comments

Show HN: OCR Arena – A playground for OCR models

https://www.ocrarena.ai/battle
85•kbyatnal•3d ago•27 comments

Moving from OpenBSD to FreeBSD for firewalls

https://utcc.utoronto.ca/~cks/space/blog/sysadmin/OpenBSDToFreeBSDMove
157•zdw•5d ago•82 comments

Random lasers from peanut kernel doped with birch leaf–derived carbon dots

https://www.degruyterbrill.com/document/doi/10.1515/nanoph-2025-0312/html
29•PaulHoule•5d ago•7 comments

Three Years from GPT-3 to Gemini 3

https://www.oneusefulthing.org/p/three-years-from-gpt-3-to-gemini
212•JumpCrisscross•2d ago•146 comments

What OpenAI did when ChatGPT users lost touch with reality

https://www.nytimes.com/2025/11/23/technology/openai-chatgpt-users-risks.html
135•nonprofiteer•22h ago•154 comments

The Bitter Lesson of LLM Extensions

https://www.sawyerhood.com/blog/llm-extension
91•sawyerjhood•9h ago•48 comments

Using Antigravity for Statistical Physics in JavaScript

https://christopherkrapu.com/blog/2025/antigravity-stat-mech/
4•ckrapu•3d ago•1 comments

Mind-reading devices can now predict preconscious thoughts

https://www.nature.com/articles/d41586-025-03714-0
133•srameshc•9h ago•88 comments

Google's new 'Aluminium OS' project brings Android to PC

https://www.androidauthority.com/aluminium-os-android-for-pcs-3619092/
79•jmsflknr•9h ago•75 comments

Chrome Jpegxl Issue Reopened

https://issues.chromium.org/issues/40168998
219•markdog12•15h ago•82 comments

Shai-Hulud Returns: Over 300 NPM Packages Infected

https://helixguard.ai/blog/malicious-sha1hulud-2025-11-24
888•mrdosija•17h ago•699 comments

PS5 now costs less than 64GB of DDR5 memory. RAM jumps to $600 due to shortage

https://www.tomshardware.com/pc-components/ddr5/64gb-of-ddr5-memory-now-costs-more-than-an-entire...
310•speckx•8h ago•190 comments

Show HN: Hypercamera – a browser-based 4D camera simulator

https://dugas.ch/4d_creatures/4d_camera.html
9•chronolitus•5d ago•2 comments

How sea turtles learn locations using Earth’s magnetic field: research

https://uncnews.unc.edu/2025/02/13/sea-turtles-secret-gps-researchers-uncover-how-sea-turtles-lea...
20•hhs•3d ago•4 comments

Fifty Shades of OOP

https://lesleylai.info/en/fifty_shades_of_oop/
62•todsacerdoti•18h ago•18 comments

Building the largest known Kubernetes cluster

https://cloud.google.com/blog/products/containers-kubernetes/how-we-built-a-130000-node-gke-cluster/
115•TangerineDream•3d ago•68 comments

A fast EDN (Extensible Data Notation) reader written in C11 with SIMD boost

https://github.com/DotFox/edn.c
52•delaguardo•18h ago•6 comments

Inside Rust's std and parking_lot mutexes – who wins?

https://blog.cuongle.dev/p/inside-rusts-std-and-parking-lot-mutexes-who-win
139•signa11•4d ago•66 comments

Bytes before FLOPS: your algorithm is (mostly) fine, your data isn't

https://www.bitsdraumar.is/bytes-before-flops/
43•bofersen•1d ago•8 comments

TSMC Arizona outage saw fab halt, Apple wafers scrapped

https://www.culpium.com/p/tsmc-arizona-outage-saw-fab-halt
184•speckx•9h ago•74 comments

Corvus Robotics (YC S18): Hiring Head of Mfg/Ops, Next Door to YC Mountain View

1•robot_jackie•11h ago

You can see a working Quantum Computer in IBM's London office

https://www.ianvisits.co.uk/articles/you-can-see-a-working-quantum-computer-in-ibms-london-office...
47•thinkingemote•2d ago•11 comments

The history of Indian science fiction

https://altermag.com/articles/the-secret-history-of-indian-science-fiction
115•adityaathalye•2d ago•9 comments
Open in hackernews

Fixrleak: Fixing Java Resource Leaks with GenAI

https://www.uber.com/blog/fixrleak-fixing-java-resource-leaks-with-genai/
17•carimura•6mo ago

Comments

stevoski•6mo ago
> “Resource leaks, where resources like files, database connections, or streams aren’t properly released after use, are a persistent issue in Java applications”

This was true maybe back in 2005. Java has had try-with-resources for a loooong time. As I see it this has been the dominant idiom for ages, for handling resources that might leak.

okr•6mo ago
People tend to forget. Stream-API is a good candidate, that people like to not consider for leakage. If you don't own your stream, if you do not definitly know, that your stream comes from a collection, then ya better close it with a try-block.
bob778•6mo ago
How much effort was spent automating this to fix 112 instances across Uber’s code base? I assume code reviews would catch any new issues so this seems like overkill for a small one-off task?
hawk_•6mo ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•6mo ago
It gives marketing team at Uber to say "wE uSe AI hErE!!1". C-levels approve since anything AI gets a nice pump.

Engineering wise. This adds nothing. It’s an absolute waste of compute and energy to run this through LLMs

sigotirandolas•6mo ago
> This analysis ensures that FixrLeak skips functions where resources are passed as parameters, returned, or stored in fields, as these resources often outlive the function’s scope.

> FixrLeak delivers precise, reliable fixes while leaving more complex cases for advanced analysis at the caller level.

In other words, this will only fix trivial leaks, which are best seen as a language design issue and can be fixed by RAII, reference counting, etc.

It won't fix the more insidious leaks like `UNBOUNDED_QUEUE.add(item)` that are more likely to pass through code review in the first place.

xyst•6mo ago
Using AI when a static scanner like SonarQube easily picks up these types of resource leaks, especially in Java.

Peak waste.

What’s next?

"Get rid of your GitHub dependabot alerts and replace it with my shitty ChatGPT wrapper”

rvz•6mo ago
> Using AI when a static scanner like SonarQube easily picks up these types of resource leaks, especially in Java.

Exactly.

It's very disappointing to see that Uber engineers would rather trust an LLM to that claims to spot these issues when a battle-tested scanner such as SonarQube would have caught this in the first place.

The LLM hype-train is almost just as bad as the JavaScript hype train in the 2010s where some of the worst technologies are used on everything.

rvz•6mo ago
Why exactly do you need LLMs for this when efficient alternatives like SonarQube or checkstyle already do this without the expensive waste LLMs create?

This adds little to no technical advantage over existing solutions what so ever for this particular use case.

yahoozoo•6mo ago
stupid af
Traubenfuchs•6mo ago
So you tell me those 200-600k software engineers that can easily solve leetcode hard are so incompetent they missed using try-with-resources at such scale, they needed to introduce new AI tooling to fix it?

Hey Uber, I am from the EU, I usually can‘t even solve leetcode medium but I will write you scalable, spotless Java for a third of the salary.

Our industry and its economics are a joke.

hello_moto•6mo ago
So you write bug-free scalable code 100% in any jobs you ever worked for?

I guess we don’t need QA and Dev/Staging environment

rad_gruchalski•6mo ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•6mo ago
But can you leetcode heh.
TYMorningCoffee•6mo ago
A lot of commenters point out that there already are many established static checkers that do this. That is not what Uber attempts here.

Uber is not proposing a static checker. They even use sonar qube in their architecture. They propose using an LLM to resolve the leak detected by sonar qube.