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The NASA/ESA Mars Sample Return mission has been canceled

https://www.science.org/content/article/nasa-s-mars-sample-return-mission-dead
121•Muhammad523•1h ago•64 comments

Xiaomi MiMo v2.6

https://mimo.xiaomi.com/mimo-v2-6
57•volf_•21m ago•9 comments

What Sun got wrong

https://bcantrill.dtrace.org/2026/09/20/what-sun-got-wrong/
405•chmaynard•6h ago•223 comments

Attention is all you have

https://alicegg.tech/2026/09/21/attention
418•zer0tonin•6h ago•124 comments

Why does mathmain need an encrypted loader?

https://safedep.io/mathmain-encrypted-loader/
71•abhisek•1h ago•16 comments

AI coding has made CI a bottleneck, so we reworked ours to keep up

https://linear.app/now/ci-bottleneck-reworked
34•julian_digital•1h ago•19 comments

The Advisory Group on Mathematics and Artificial Intelligence

https://terrytao.wordpress.com/2026/09/21/advisory-group-on-mathematics-and-artificial-intelligence/
28•digital55•1h ago•10 comments

In Search of a Compositional Theory of Self-Stabilization

http://muratbuffalo.blogspot.com/2026/09/in-search-of-compositional-theory-of.html
24•matt_d•1h ago•1 comments

Frontier AI on Your Own Hardware

https://timdettmers.com/2026/09/21/dlab-open-source-week/
17•pretext•1h ago•2 comments

Turn off and restrict access to Apple Intelligence features on Mac

https://support.apple.com/guide/mac-help/turn-restrict-access-apple-intelligence-mchlb2e44f94/mac
153•alwillis•3h ago•94 comments

Grok 4.7

https://x.ai/news/grok-4-7
383•meetpateltech•4h ago•327 comments

Advisory Group on Mathematics and Artificial Intelligence

https://openai.com/index/advisory-group-on-mathematics-and-ai/
56•js73js8•3h ago•36 comments

Apple Copland D11E4 Booting in the Browser

https://www.pagetable.com/300
23•luu•2h ago•2 comments

US halts flights at busy East Coast airports, says fiber line cut

https://www.reuters.com/world/us/faa-halts-some-us-east-coast-flights-due-communication-issues-20...
109•allanbreyes•1h ago•67 comments

Transformers Explained Visually

https://poloclub.github.io/transformer-explainer/
6•aray07•49m ago•0 comments

This Digital Radio Gets Messages to the World’s Remotest Locations

https://spectrum.ieee.org/hermes-shortwave-radio-digital-data
57•SamuraiLion•4h ago•30 comments

A restored PDP-11/83 serving this page on 211BSD Unix

http://pdp1173.com/
71•davepl•4h ago•26 comments

Kev: Tiny Jev-like family of decision models built on top of Qwen3.5

https://github.com/jaredpalmer/kev/tree/main
352•tosh•13h ago•162 comments

Python Workers are now generally available

https://blog.cloudflare.com/python-workers-ga/
138•torutofu•6h ago•18 comments

Avoiding the babbling-idiot failure in a time-triggered communication system

https://ieeexplore.ieee.org/document/689473
17•ronfriedhaber•2h ago•5 comments

How do Traffic Signals Work (2019)

https://practical.engineering/blog/2019/5/11/how-do-traffic-signals-work
39•at1as•4h ago•25 comments

Fable 5 – Median thinking declined in August

https://twitter.com/Lon/status/2101793422487204027
273•espeed•4h ago•183 comments

Grim Fandango Puzzle Document (1996) [pdf]

http://gameshelf.jmac.org/2008/11/13/GrimPuzzleDoc_small.pdf
344•kelseyfrog•14h ago•82 comments

Show HN: A website that tracks US food prices every day

https://www.kadoa.com/food-prices
4•hubraumhugo•1h ago•0 comments

M5 Ultra Mac Studio Review

https://www.macstories.net/stories/m5-ultra-mac-studio-review-the-dream-mac-for-local-ai-agents/
199•piotrgrabowski•6h ago•186 comments

RoboHarm: Do Frontier Robot Policies Refuse Unsafe Instructions?

https://robocurve.org/roboharm/
4•msadowski•1h ago•0 comments

macOS 27: Workaround to avoid downloading AI models and save storage

https://www.reddit.com/r/MacOSBeta/comments/1vlnf13/workaround_to_avoid_downloading_ai_models_and/
166•ano-ther•6h ago•77 comments

Noodle Gallery- Open-source, self-hosted alternative to Google Photos and Immich

https://digitalescapetools.com/tools/noodlegallery.html
38•xabd•6h ago•27 comments

Heretic removes restrictions from language models

https://heretic-project.org/
203•Bluestein•15h ago•87 comments

Raspberry Pi blocks changing RAM chips

https://forums.raspberrypi.com/viewtopic.php?p=2380887#p2380888
195•edandersen•7h ago•155 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.