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Gemini 4 Argon

https://blog.google/innovation-and-ai/models-and-research/gemini-models/gemini-4-argon/
600•bradleyg223•1h ago•368 comments

Surprisingly Complex Waves Reveal the Brain's Inner Workings

https://www.quantamagazine.org/surprisingly-complex-waves-reveal-the-brains-inner-workings-20260930/
68•ibobev•2h ago•15 comments

EDG C++ front-end goes public

https://edgcpp.org/#transition
80•iandinwoodie•2h ago•32 comments

Launch HN: Magnitude (YC S25) – Self-optimizing inference engine for agents

https://github.com/magnitudedev/magnitude
97•anerli•4h ago•43 comments

Gemini 4 Argon (High): Intelligence, Performance and Price Analysis

https://artificialanalysis.ai/models/gemini-4-argon
17•theanonymousone•51m ago•7 comments

5x faster Edge Functions: V8 isolates to Firecracker MicroVMs

https://www.netlify.com/blog/edge-functions-firecracker-microvms/
68•jbott•3h ago•24 comments

Halfspace experimental IDE for solid modeling with distance fields

https://www.mattkeeter.com/projects/halfspace/
32•luu•1h ago•6 comments

A brief history of the Bloomberg terminal

https://spectrum.ieee.org/bloomberg-terminal
188•rbanffy•7h ago•74 comments

You said no MCP

https://earendil.com/posts/you-said-no-mcp/
561•yarapavan•11h ago•323 comments

I could've accessed 17T Microsoft records

https://blog.faav.net/how-i-couldve-accessed-17-trillion-microsoft-records
222•luispa•2d ago•97 comments

Gitea 28.0

https://blog.gitea.com/release-of-28.0.0/
37•porridgeraisin•1h ago•14 comments

The last time my family was replaced by technology

https://manuel.darcemont.fr/posts/the-last-time-my-family-was-replaced-by-technology/
146•megalomanu•8h ago•341 comments

Functional Ultrasound Imaging (fUSI) from scratch

https://www.neuroai.science/p/functional-ultrasound-imaging-from
7•pminimax•1h ago•1 comments

CHOMPI portable sampler instrument is now open-source (hardware and software)

https://www.chompiclub.com/opensource
8•lashkari•3h ago•2 comments

Bild AI (YC W25) Is Hiring a Founding Product Engineer

https://www.ycombinator.com/companies/bild-ai/jobs/dAbC3Gd-founding-product-engineer
1•rooppal•4h ago

Before pixels: Modular industrial dashboards

https://unsung.aresluna.org/before-pixels-modular-industrial-dashboards/
12•leephillips•2h ago•2 comments

Doing a Machine Learning PhD While Working in Japan

https://www.tokyodev.com/articles/doing-a-machine-learning-phd-while-working-in-japan
7•pwim•14h ago•2 comments

What TLA+ can and can't check

https://buttondown.com/hillelwayne/archive/what-tla-can-and-cant-check/
109•b-man•7h ago•25 comments

Singapore govt dating app uses Gale-Shapley stable marriage algorithm

https://twitter.com/tuakdotsol/status/2105105417760391258
44•rzk•12h ago•5 comments

Commit description as a thinking tool

https://yedhu.me/posts/commit-description-as-a-thinking-tool/
100•yedhukrishnan•4h ago•58 comments

Burning Man death rates – A short lesson in statistics

https://ihavenapkinthoughts.substack.com/p/burning-man-death-rates-a-short-lesson
81•viraj_shah•2d ago•100 comments

SDF vs. MSDF vs. Slug: GPU Text Rendering

https://alphapixeldev.com/sdf-vs-msdf-vs-slug-vs-rive-gpu-text-rendering/
116•ibobev•7h ago•47 comments

CS240 AI Cheating Retrospective

https://turkeyland.net/thoughts/ai.php
18•ArchAndStarch•1h ago•4 comments

Dumb servers, smart clients: Distributing OS images with Quarry

https://amutable.com/blog/distributing-images-quarry
12•Levitating•9h ago•0 comments

Recursive `make` and `-j`

https://quuxplusone.github.io/blog/2026/09/30/recursive-make-j/
10•ibobev•3h ago•2 comments

Responsible Release of AI-Generated Mathematics

https://agmai.org/general-sep29/
56•aureianimus•19h ago•58 comments

Understanding the Dual Polytope for Hull Simplification

https://cairnc.github.io/posts/understanding-the-dual-polytope/
12•OlympicMarmoto•1d ago•1 comments

SDF Public Access Unix System ... est. 1987

https://sdf.org/
70•kmstout•7h ago•13 comments

Moist-Electric Wallpaper for Indoor Energy Harvesting and Humidity Management

https://advanced.onlinelibrary.wiley.com/doi/10.1002/aenm.71603
51•croes•5h ago•31 comments

America.gov goes crazy on "play Minecraft"

https://america.gov/chat
89•thoughtfullyso•2h ago•33 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•1y ago

Comments

stevoski•1y 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•1y 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•1y 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_•1y ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•1y 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•1y 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•1y 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•1y 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•1y 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•1y ago
stupid af
Traubenfuchs•1y 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•1y 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•1y ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•1y ago
But can you leetcode heh.
TYMorningCoffee•1y 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.