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DeepSeek v4

https://api-docs.deepseek.com/
856•impact_sy•5h ago•510 comments

Composition Shouldn't be this Hard

https://www.cambra.dev/blog/announcement/
36•larelli•1h ago•22 comments

Why I Write (1946)

https://www.orwellfoundation.com/the-orwell-foundation/orwell/essays-and-other-works/why-i-write/
159•RyanShook•6h ago•33 comments

An update on recent Claude Code quality reports

https://www.anthropic.com/engineering/april-23-postmortem
723•mfiguiere•15h ago•538 comments

GPT-5.5

https://openai.com/index/introducing-gpt-5-5/
1354•rd•14h ago•891 comments

US special forces soldier arrested after allegedly winning $400k on Maduro raid

https://www.cnn.com/2026/04/23/politics/us-special-forces-soldier-arrested-maduro-raid-trade
215•nkrisc•10h ago•264 comments

Bitwarden CLI compromised in ongoing Checkmarx supply chain campaign

https://socket.dev/blog/bitwarden-cli-compromised
748•tosh•18h ago•365 comments

Show HN: Gova – The declarative GUI framework for Go

https://github.com/NV404/gova
15•aliezsid•2h ago•2 comments

Habitual coffee intake shapes the microbiome, modifies physiology and cognition

https://www.nature.com/articles/s41467-026-71264-8
136•scubakid•4h ago•68 comments

Show HN: How LLMs Work – Interactive visual guide based on Karpathy's lecture

https://ynarwal.github.io/how-llms-work/
15•ynarwal__•2h ago•2 comments

Why Not Venus?

https://mceglowski.substack.com/p/why-not-venus
25•zdw•3h ago•6 comments

MeshCore development team splits over trademark dispute and AI-generated code

https://blog.meshcore.io/2026/04/23/the-split
216•wielebny•15h ago•112 comments

Meta tells staff it will cut 10% of jobs

https://www.bloomberg.com/news/articles/2026-04-23/meta-tells-staff-it-will-cut-10-of-jobs-in-pus...
590•Vaslo•13h ago•565 comments

Show HN: Tolaria – Open-source macOS app to manage Markdown knowledge bases

https://github.com/refactoringhq/tolaria
191•lucaronin•10h ago•72 comments

Familiarity is the enemy: On why Enterprise systems have failed for 60 years

https://felixbarbalet.com/familiarity-is-the-enemy/
36•adityaathalye•4h ago•18 comments

TorchTPU: Running PyTorch Natively on TPUs at Google Scale

https://developers.googleblog.com/torchtpu-running-pytorch-natively-on-tpus-at-google-scale/
132•mji•11h ago•9 comments

Using the internet like it's 1999

https://joshblais.com/blog/using-the-internet-like-its-1999/
155•joshuablais•12h ago•97 comments

Ubuntu 26.04

https://lwn.net/Articles/1069399/
184•lxst•4h ago•97 comments

UK Biobank health data keeps ending up on GitHub

https://biobank.rocher.lc
120•Cynddl•18h ago•32 comments

My phone replaced a brass plug

https://drobinin.com/posts/my-phone-replaced-a-brass-plug/
129•valzevul•16h ago•29 comments

Show HN: Agent Vault – Open-source credential proxy and vault for agents

https://github.com/Infisical/agent-vault
105•dangtony98•1d ago•36 comments

Show HN: Honker – Postgres NOTIFY/LISTEN Semantics for SQLite

https://github.com/russellromney/honker
257•russellthehippo•20h ago•62 comments

A programmable watch you can actually wear

https://www.hackster.io/news/a-diy-watch-you-can-actually-wear-8f91c2dac682
181•sarusso•2d ago•86 comments

Astronomers find the edge of the Milky Way

https://skyandtelescope.org/astronomy-news/astronomers-find-the-edge-of-the-milky-way/
120•bookofjoe•14h ago•26 comments

Alberta startup sells no-tech tractors for half price

https://wheelfront.com/this-alberta-startup-sells-no-tech-tractors-for-half-price/
2190•Kaibeezy•1d ago•745 comments

Incident with multple GitHub services

https://www.githubstatus.com/incidents/myrbk7jvvs6p
242•bwannasek•16h ago•117 comments

Used La Marzocco machines are coveted by cafe owners and collectors

https://www.nytimes.com/2026/04/20/dining/la-marzocco-espresso-machine.html
66•mitchbob•3d ago•116 comments

Writing a C Compiler, in Zig (2025)

https://ar-ms.me/thoughts/c-compiler-1-zig/
161•tosh•23h ago•44 comments

I am building a cloud

https://crawshaw.io/blog/building-a-cloud
1059•bumbledraven•1d ago•532 comments

French government agency confirms breach as hacker offers to sell data

https://www.bleepingcomputer.com/news/security/french-govt-agency-confirms-breach-as-hacker-offer...
384•robtherobber•16h ago•138 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•11mo ago

Comments

stevoski•11mo 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•11mo 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•11mo 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_•11mo ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•11mo 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•11mo 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•11mo 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•11mo 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•11mo 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•11mo ago
stupid af
Traubenfuchs•11mo 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•11mo 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•11mo ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•11mo ago
But can you leetcode heh.
TYMorningCoffee•11mo 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.