frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

John Deere owners will get the right to repair equipment under FTC settlement

https://apnews.com/article/john-deere-right-to-repair-agriculture-equipment-cb7514ffedb95c130a976...
557•djoldman•5h ago•111 comments

Spider venom kills varroa mites without harming honeybees

https://connectsci.au/news/news-parent/9703/Spider-venom-kills-varroa-mites-without-harming
12•Jedd•16m ago•0 comments

Chatto is now open source

https://www.hmans.dev/blog/chatto-is-open-source
850•speckx•14h ago•223 comments

Separating signal from noise in coding evaluations

https://openai.com/index/separating-signal-from-noise-coding-evaluations/
190•sk4rekr0w•8h ago•68 comments

Mistral's Robostral Navigate: a state of the art robotics navigation model

https://mistral.ai/news/robostral-navigate/
449•ottomengis•15h ago•96 comments

Cloudflare Drop

https://www.cloudflare.com/drop/
346•coloneltcb•10h ago•172 comments

Remote Attestation

https://www.liamcvw.com/p/remote-attestation
57•lcvw•4h ago•49 comments

Cargo-nextest: 3x faster than cargo test, per-test isolation, first-class CI

https://nexte.st/
23•nateb2022•3d ago•3 comments

Benchmarking coding agents on Databricks' multi-million line codebase

https://www.databricks.com/blog/benchmarking-coding-agents-databricks-multi-million-line-codebase
35•tanelpoder•8h ago•11 comments

Show HN: Microsoft releases Flint, a visualization language for AI agents

https://microsoft.github.io/flint-chart/#/
239•chenglong-hn•11h ago•98 comments

Patching MechCommander's "left arm bug" for fun and profit

https://mhloppy.com/2026/05/mechcommander-weapons-left-arm-bug-fix/
39•Narann•3d ago•12 comments

Show HN: Yamanote.fun – A complete soundscape for Tokyo's Yamanote line

https://www.yamanote.fun/
108•madebymagnolia•1d ago•21 comments

Unicode's transliteration rules are Turing-complete

https://seriot.ch/computation/uts35/
66•beefburger•19h ago•22 comments

What's slowing down the AI buildout

https://www.worksinprogress.news/p/ai-is-bottlenecked-by-the-grid
10•droidjj•2h ago•3 comments

Grok 4.5

https://x.ai/news/grok-4-5
539•BoumTAC•11h ago•727 comments

Turning a pile of documents into a searchable useable knowledge base

https://github.com/linuxrebel/DocuBrowser
107•linuxrebe1•8h ago•24 comments

The Strange Locomotion of Spirocuta

https://chriskiehl.com/article/euglenid-motion-in-flagellates
6•goostavos•3d ago•0 comments

We made Grok 4.5, GPT-5.5, and Claude build the same apps

https://www.tryai.dev/blog/grok-4.5-vs-gpt-5.5-vs-claude-build-off
122•hershyb_•6h ago•58 comments

GPT‑Live

https://openai.com/index/introducing-gpt-live/
655•logickkk1•12h ago•426 comments

Rewriting Bun in Rust

https://bun.com/blog/bun-in-rust
417•afturner•7h ago•218 comments

Apache Shiro security framework releases 3.0.0

https://shiro.apache.org/blog/2026/06/apache-shiro-300-released.html
15•lprimak•2d ago•0 comments

FAANG Simulator

https://www.abeyk.com/escape-the-rat-race/
358•nerdbiscuits•9h ago•137 comments

I think I have LLM burnout

https://www.alecscollon.com/blog/llm-burnout/
247•sosodev•3h ago•188 comments

Decoding the obfuscated bash script on a Uniqlo t-shirt

https://tris.sherliker.net/blog/obfuscated-self-evaluating-bash-script-by-cdn-akamai-being-suppli...
1342•speerer•20h ago•210 comments

TypeScript 7

https://devblogs.microsoft.com/typescript/announcing-typescript-7-0/
529•DanRosenwasser•13h ago•207 comments

New Sweden: the US's long-lost 'secret' colony

https://www.bbc.com/travel/article/20260629-new-sweden-the-uss-long-lost-secret-colony
79•bookofjoe•10h ago•29 comments

MIRA: Multiplayer Interactive World Models Trained on Rocket League

https://mira-wm.com/
50•ethanlipson•5h ago•10 comments

A bug which affected only left handed users

https://shkspr.mobi/blog/2026/07/a-bug-which-only-affected-left-handed-users/
101•sixhobbits•16h ago•54 comments

Cloudflare Meerkat - Globally distributed consensus

https://blog.cloudflare.com/meerkat-introduction/
238•bobnamob•16h ago•47 comments

Ergo: Long Form Philosophy Lectures

https://ergo.org/
7•agnishom•2h ago•0 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.