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LLMs reward expertise

https://www.seangoedecke.com/llms-reward-expertise/
907•MaxMussio•11h ago•382 comments

Show HN: Run an 80B Qwen in 4.3 GB of RAM on a Mac, and a 35B on an iPhone

https://github.com/leonickson1/Swiftlet
166•leonickson•16h ago•67 comments

Amazonian civilization had estimated 3M people in 3% of forest area

https://www.science.org/content/article/odd-shapes-hidden-dense-amazon-rainforest-reveal-sprawlin...
146•marojejian•5d ago•106 comments

Harness Engineering for Self-Improvement

https://lilianweng.github.io/posts/2026-07-04-harness/
17•tosh•2h ago•0 comments

Ten advances in mathematics and theoretical computer science

https://openai.com/index/ten-advances-in-mathematics/
534•milkshakes•16h ago•820 comments

Devtools must be open source

https://blog.exe.dev/devtools-must-be-open-source
599•bryanmikaelian•18h ago•200 comments

That time when I failed the Microsoft interview

https://ochagavia.nl/blog/that-time-when-i-failed-the-microsoft-interview/
53•wofo•5d ago•84 comments

There Will Come Soft Rains (1950) [pdf]

https://users.wpi.edu/~zrbutzke/Docs/BradburyStories(1).pdf
150•pmg101•9h ago•56 comments

Ask HN: Who is hiring? (August 2026)

172•whoishiring•18h ago•158 comments

CollectWise (YC F24) Is Hiring

https://www.ycombinator.com/companies/collectwise/jobs/oEAfzBS-ai-agent-engineer
1•OBrien_1107•2h ago

Beauty in my backyard

https://worksinprogress.co/issue/beauty-in-my-backyard/
19•footest•4d ago•2 comments

Smaller, faster, safer: running Kimi and GLM at scale

https://blog.cloudflare.com/smaller-faster-safer-models/
212•ascorbic•16h ago•52 comments

Prevent cognitive debt by manually retyping LLM-generated code

https://ankursethi.com/blog/prevent-cognitive-debt-by-manually-retyping-llm-generated-code/
476•mpweiher•23h ago•385 comments

Ask HN: Who wants to be hired? (August 2026)

114•whoishiring•18h ago•266 comments

MiniMax H3 Day-0 Support in ComfyUI: Open Weights, Native Audio, and 2K Video

https://blog.comfy.org/p/minimax-h3-day-0-support-in-comfyui
293•vblanco•19h ago•85 comments

Twenty Years of Pandoc

https://pandoc.org/twenty-years-of-pandoc.html
243•fiddlosopher•18h ago•29 comments

Launch HN: Hoplite (YC S26) – Effortlessly deploy cloud coding agents

https://hoplite.sh
70•BenceRed•16h ago•57 comments

Andy Pavlo joins ClickHouse to establish ClickHouse Labs

https://clickhouse.com/blog/andy-pavlo-joins-clickhouse
310•nikolay_sivko•19h ago•65 comments

Celebrating 45 Years of Kermit with the First New C-Kermit Release in 15 Years

https://changelog.complete.org/archives/44456-celebrating-45-years-of-kermit-with-the-first-new-c...
161•roryirvine•16h ago•40 comments

Trembling Photons in Non-Abelian Electric Fields

https://physics.aps.org/articles/v19/89
3•bookofjoe•3d ago•0 comments

Windows XP 2002 for the Itanium: Unbridled rage

https://virtuallyfun.com/2026/08/03/windows-xp-2002-for-the-itanium-unbridled-rage/
103•jandeboevrie•11h ago•54 comments

Why did we wait so long for the bicycle? (2019)

https://blog.rootsofprogress.org/why-did-we-wait-so-long-for-the-bicycle
42•frozenseven•9h ago•37 comments

Replacing the Kobo Libra H2O Battery

https://ei3lh.eu/2025/11/20/replacing-the-kobo-libra-h2o-battery/
75•austinallegro•5d ago•24 comments

200 Milliseconds

https://200ms.thenodebook.com
272•dimitarpanov•2d ago•80 comments

How Hollywood stopped making movies in Hollywood

https://www.statsignificant.com/p/how-hollywood-stopped-making-movies
195•speckx•6d ago•239 comments

Bonsai: Janestreet's UI Library

https://github.com/janestreet/bonsai
349•KolmogorovComp•1d ago•145 comments

Decades-old fish sauce at abandoned factory in Canada finally being removed

https://defector.com/abandoned-fish-sauce-canada-interview
242•ohjeez•3d ago•248 comments

RosaicLabs, Atom RTL, and 32-Tile AMX: Trying to Piece Together a x86 Puzzle

https://chipsandcheese.com/p/rosaiclabs-atom-rtl-and-32-tile-amx
8•aba_cz•4d ago•0 comments

IPC-7351B Electronic Component Zero Orientation [pdf] (2010)

https://scancad.net/wp-content/uploads/2019/02/zero-orientation-cad-libaray.pdf
12•gregsadetsky•3d ago•4 comments

Apple is getting this wrong

https://openai.com/index/apple-is-getting-this-wrong/
184•meetpateltech•3h ago•169 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.