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ZCode: Claude Code from the Makers of GLM

https://zcode.z.ai/cn
80•handfuloflight•46m ago•20 comments

For first time, a cell built from scratch grows and divides

https://www.quantamagazine.org/for-the-first-time-a-cell-built-from-scratch-grows-and-divides-202...
544•defrost•5h ago•181 comments

What to Learn to Be a Graphics Programmer

https://blog.demofox.org/2026/07/01/what-to-learn-to-be-a-graphics-programmer/
98•atan2•2h ago•38 comments

FFmpeg 9.1's new AAC encoder

https://hydrogenaudio.org/index.php/topic,129691.0.html
146•ledoge•5h ago•60 comments

Physical disc production ending in Jan 2028 for new games on PlayStation

https://blog.playstation.com/2026/07/01/physical-disc-production-ending-in-january-2028-for-new-g...
399•Tiberium•7h ago•468 comments

Fable 5 Is Back

https://twitter.com/claudeai/status/2072402636813607381
73•mfiguiere•22m ago•26 comments

How We Made IPFS Content Publishing 10x Faster

https://probelab.io/blog/optimistic-provide/
106•dennis-tra•4h ago•27 comments

Box3D, an open source 3D physics engine

https://box2d.org/posts/2026/06/announcing-box3d/
319•makepanic•7h ago•70 comments

Ask HN: Who is hiring? (July 2026)

105•whoishiring•4h ago•119 comments

Monetization Gateway

https://blog.cloudflare.com/monetization-gateway/
179•soheilpro•5h ago•101 comments

Internal Combustion Engine

https://ciechanow.ski/internal-combustion-engine/
194•StefanBatory•6h ago•38 comments

Understanding the Linux Kernel: The Scheduler

https://internals-for-interns.com/posts/linux-kernel-scheduler/
16•valyala•4d ago•3 comments

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

75•whoishiring•4h ago•170 comments

Hanami 3.0: In Full Bloom

https://hanakai.org/blog/2026/06/30/hanami-3-0-in-full-bloom
30•PuercoPop•2h ago•4 comments

Mortality associated with non-optimal ambient temperatures from 2000 to 2019

https://www.researchgate.net/publication/353058947_Global_regional_and_national_burden_of_mortali...
16•simonebrunozzi•2h ago•0 comments

Weave Robotics launches Isaac 1, a $7,999 home robot with fall 2026 deliveries

https://runtimewire.com/article/weave-robotics-isaac-1-home-robot-launch
13•ryanmerket•1h ago•20 comments

Building Gin: Simple over Easy

https://manualmeida.dev/articles/gin-simple-over-easy/
42•manucorporat•2h ago•12 comments

A complete ClickHouse OLAP engine, compiled to WebAssembly

https://wasm.chdb.io/
22•porridgeraisin•2h ago•3 comments

Manufact (YC S25) Is Hiring a Developer Advocate in SF

https://www.ycombinator.com/companies/manufact/jobs/4cyWd6S-developer-advocate-partnerships-devrel
1•luigipederzani•6h ago

Show HN: Z-Jail – A 130 KB Linux sandbox-C99 with 7 defense layers and zero deps

https://github.com/Division-36/Z-Jail/
7•Zierax•39m ago•1 comments

1-Bit Pixel Art Emojis

https://hypertalking.com/2023/05/15/1-bit-pixel-art-emojis/
94•surprisetalk•6d ago•14 comments

Launch HN: Parsewise (YC P25) – Reason Across Documents with an API

39•gergelycsegzi•6h ago•35 comments

Sony Deletes 551 Movies PlayStation Owners Paid For

https://reclaimthenet.org/sony-deletes-551-studiocanal-movies-playstation-owners-paid-for
345•bilsbie•5h ago•169 comments

Fixing a kubelet memory leak in Kubernetes 1.36

https://heyoncall.com/blog/fixing-kubernetes-kubelet-memory-leak
50•compumike•17h ago•11 comments

Claude Fable 5 Promotional Access

https://support.claude.com/en/articles/15424964-claude-fable-5-promotional-access
9•zbikowski•26m ago•3 comments

Reduce GVisor Cold Starts with GPU Snapshotting

https://cerebrium.ai/blog/reducing-gpu-cold-starts-with-memory-snapshots-restoring-cuda-workloads...
39•jono_irwin•3h ago•15 comments

Asahi Linux 7.1 Progress Report

https://asahilinux.org/2026/06/progress-report-7-1/
489•pantalaimon•9h ago•173 comments

Show HN: QR code renderer in a TrueType font

https://qr.jim.sh/
46•foodevl•3d ago•10 comments

Apple 'Hide My Email' vulnerability reveals peoples' real email addresses

https://easyoptouts.com/guides/apple-hide-my-email-is-leaking-email-addresses
178•sashk•9h ago•35 comments

Newly discovered spider builds spring loaded snare to catch ants

https://phys.org/news/2026-06-newly-australian-ballista-spider-snare.html
226•chimpanzee•2d ago•58 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.