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What algorithm did Windows XP use to choose your initial user picture?

https://devblogs.microsoft.com/oldnewthing/20260909-00/?p=112683
133•soheilpro•3h ago•61 comments

Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls

https://www.pv-magazine.com/2026/09/07/hitachi-launches-co2-heat-pump-water-heaters-with-solar-fr...
15•thelastgallon•21h ago•5 comments

Show HN: The same nine streaming subscriptions cost $702/year more than in 2021

https://honestlyranked.com/guides/streaming-price-increases/
146•honestlyranked•2h ago•145 comments

Stockfish 19

https://stockfishchess.org/blog/2026/stockfish-19/
97•atiedebee•2d ago•51 comments

DeepSeek v4.1 Flash

https://twitter.com/deepseek_ai/status/2097930608790167907
513•Liwink•6h ago•284 comments

iPhone Duo

https://www.apple.com/iphone-duo/
1247•thecosmicfrog•18h ago•2188 comments

Show HN: What if the speed of light was 5 km/h?

https://rivendell.dmitrybrant.com/relativity/
413•dmitrybrant•10h ago•166 comments

Shopify acquires Tailwind

https://tailwindcss.com/blog/tailwind-is-joining-shopify
1062•EdwinHoksberg•23h ago•412 comments

Object storage is all you need

https://www.tigrisdata.com/blog/object-storage-all-need/
16•jpsaccount•1d ago•11 comments

What do Visa and Mastercard do? An intro to card networks

https://tautology.town/2026/06/01/card-networks.html
567•evakhoury•1d ago•346 comments

Thanks to Siri Recaps, your Apple Watch is always listening

https://www.techradar.com/health-fitness/smartwatches/thanks-to-siri-recaps-your-apple-watch-is-a...
43•geox•1h ago•28 comments

Larger Pacific Striped Octopus

https://en.wikipedia.org/wiki/Larger_Pacific_striped_octopus
82•olalonde•1d ago•43 comments

Growing proof that autonomous cars save lives

https://spectrum.ieee.org/are-self-driving-cars-safe
374•bookofjoe•19h ago•649 comments

Show HN: Art – draw one stroke, let symmetry complete it

https://mrdee.in/mandala/
23•cyb0rg0•4d ago•9 comments

Liesegang Rings

https://chillphysicsenjoyer.substack.com/p/liesegang-rings
3•surprisetalk•23h ago•0 comments

No Man's Sky Cosmos

https://www.nomanssky.com/cosmos-update/
414•Limb•20h ago•411 comments

Samsung Debuts zHBM Prototype, Stacking Memory Directly on AI Accelerators

https://www.thelec.net/news/articleView.html?idxno=12835
32•peter_d_sherman•3d ago•6 comments

PlayStation cancels Kojima's PHYSINT, Xbox steps in

https://twitter.com/hideo_kojima_en/status/2097877506401681753
41•HatchedLake721•1h ago•21 comments

GPT-6 Astra, looped transformers, and hidden reasoning

https://magazine.sebastianraschka.com/p/gpt-6-astra-looped-transformers-and
456•ModelForge•21h ago•147 comments

Show HN: Persistent Jupyter kernel execution and live output streaming in VSCode

https://github.com/rnoro/tithon
5•rnoro_•23h ago•1 comments

AirPods 5

https://www.apple.com/newsroom/2026/09/apple-introduces-airpods-5-with-best-in-class-open-ear-act...
471•awad•18h ago•402 comments

iPhone 18 Pro and iPhone 18 Pro Max

https://www.apple.com/newsroom/2026/09/apple-debuts-iphone-18-pro-and-iphone-18-pro-max/
377•meetpateltech•18h ago•422 comments

All grown-ups were once children, but only few of them remember it

https://mathstodon.xyz/@tao/117244102901892965
215•yurivish•8h ago•156 comments

Automattic's board forces CEO Matt Mullenweg into leave of absence

https://techcrunch.com/2026/09/09/automattics-board-forces-ceo-matt-mullenweg-into-leave-of-absence/
339•LeoPanthera•12h ago•218 comments

Aardman (Wallace and Gromit) Is Selling Its Original Movie Puppets

https://gizmodo.com/aardman-is-selling-its-original-movie-puppets-this-month-2000807968
61•Gaishan•3d ago•13 comments

Desert Ant Labs: local, fast models that run on device

https://desertant.com/blog/introducing-desert-ant-labs/
460•willwhitedc•1d ago•97 comments

Show HN: Compute polynomials twice as fast

https://thomasahle.com/fast-polynomials/
101•thomasahle•1d ago•34 comments

I think I hate the internet

https://strategictree.bearblog.dev/i-think-i-hate-the-internet/
109•saikatsg•6h ago•84 comments

Open Source Durable Objects for Postgres

https://solidobjects.dev/blog/introducing-solidobjects
32•cardmagic•1d ago•13 comments

Qwen 3.8 follows GPT-5.5 Pro reasoning prefills

https://gist.github.com/wsxiaoys/e0286dc6bb624ff5fdf49e7f4c528ba3
223•wsxiaoys•19h ago•86 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.