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90% of US working hours are spent on tasks not covered well by AI benchmarks

https://www.mercor.com/research/labor-index/benchmark-map/
157•speckx•1h ago•124 comments

Apple ML Research: Muse Spark Open with MLX on Mac Studio

https://machinelearning.apple.com/research/mlx-distributed-inference
185•antipaul•5h ago•89 comments

eBay Restricts Listings of Radio Equipment, but Exempts Ham-Band-Only Gear

https://www.arrl.org/arrlletterissue?issue=2026-10-15#eBay-Restricts-Listings-of-Radio-Equipment_...
31•7402•38m ago•9 comments

Big Fish: Exploiting a 37-Year-Old Kernel Bug in OpenBSD

https://calif.io/research/big-fish
121•rs_rs_rs_rs_rs•4h ago•33 comments

What on Earth Is Dekton?

https://www.worksinprogress.news/p/porcelain
90•wawayanda•4h ago•28 comments

Show HN: Gemini 4 Argon plays StarCraft

https://starskirmish.com/bench/v0-2/
123•__cayenne__•4h ago•64 comments

I Love Software Rendering

https://www.jamesfmackenzie.com/2026/10/13/i-love-software-rendering/
233•speckx•5h ago•160 comments

Stolen Renoir paintings found hidden, and damaged, behind cinder block wall

https://www.cbsnews.com/news/stolen-renoir-paintings-found-behind-wall-france/
67•ohjeez•3d ago•45 comments

Piramidal (YC W24) Is Hiring

https://job-boards.greenhouse.io/piramidalinc/jobs/4443102009
1•dsacellarius•1h ago

Designing more efficient quantum circuits with Claude

https://www.anthropic.com/research/designing-efficient-quantum-circuits
16•pretext•44m ago•3 comments

Tesla Roadster

https://www.tesla.com/roadster
597•shekhar101•17h ago•936 comments

JPEG XL vs. AVIF for web use-cases

https://jakearchibald.com/2026/jpeg-xl-vs-avif/
96•farlight•2h ago•66 comments

RFC8950: Announce IPv4 with an IPv6 next-hop

https://anuragbhatia.com/post/2026/06/rfc8950-announce-ipv4-with-ipv6-next-hop/
66•porridgeraisin•5h ago•29 comments

Woman who rescued injured crow keeps getting 'thank-you gifts' from birds [video]

https://www.youtube.com/watch?v=sjNpfz4UzqU
756•johnnyApplePRNG•3d ago•230 comments

Is Liquid Metal Killing Our PCs? Scientific Analysis and a 2-Year Test [video]

https://www.youtube.com/watch?v=eF6bMSjPepM
58•zdw•19h ago•37 comments

Yet another way to invoke functions without parentheses

https://blog.ikaes.de/yet-another-way-to-invoke-functions-without-parentheses/
224•aragonite•2d ago•100 comments

Making 1,750 programmable PCB badges for Canada's biggest hackathon

https://va3ndf.com/blog/hacker-badges/
23•va3ndf•2d ago•7 comments

How to make System 1 LLMs show System 2 competencies?

https://onlinelibrary.wiley.com/doi/epdf/10.1002/aaai.70113
34•porridgeraisin•4h ago•18 comments

Show HN: rStation – A shared research lab for your AI agents

https://rstation.ai/
36•stephenchung•4h ago•18 comments

Postgres 19 delayed after AI reviewers find more bugs than humans can fix

https://www.theregister.com/databases/2026/10/16/postgres-19-delayed-after-ai-reviewers-find-more...
116•magoghm•2h ago•35 comments

US Rep Announces Congressional Legislation to Protect Video Game Ownership

https://ritchietorres.house.gov/posts/rep-torres-announces-power-to-the-players-act-legislation-t...
123•DeepLogin•2h ago•69 comments

How gyroscopes got so small [video]

https://www.youtube.com/watch?v=0Zc_6xB5W3Y
72•surprisetalk•1d ago•32 comments

What was a Token Ring network?

https://dfarq.homeip.net/what-was-a-token-ring-network/
46•ibobev•5h ago•37 comments

The Economic Complexity of the Western Roman Empire

https://www.michelecoscia.com/?p=2613
131•mikk14•2d ago•29 comments

Show HN: Wonderhop – A daily game: guess what most people say, or what none do

https://wonderhop.io/en/
27•mtlduo•2d ago•33 comments

Inside Polymarket's paid quote-retweet esports program

https://www.readergrev.com/p/polymarket-paid-quote-retweet-esports-investigation
73•paimapi•2h ago•52 comments

Anthropic assigned highest junk credit rating in June

https://www.ft.com/content/5a310aee-f555-4266-874c-b1b4db20186d
22•JumpCrisscross•33m ago•4 comments

AB Fab – On Anthony Burgess

https://www.lrb.co.uk/the-paper/v48/n18/ian-penman/ab-fab
4•feltsense•1d ago•1 comments

AI-assisted PCB design for KiCad 10

https://github.com/mixelpixx/Konnect
112•ofrzeta•2d ago•41 comments

Show HN: OneDeploy – Managed open-source apps with nightly backups and TLS

https://onedeploy.co
18•relatedcode•3h ago•11 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.