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The Closing of the Frontier

https://tanyaverma.sh/2026/04/10/closing-of-the-frontier.html
108•MindGods•1h ago•60 comments

European AI. A playbook to own it. By Mistral

https://europe.mistral.ai/
19•hjouneau•18m ago•1 comments

Show HN: boringBar – a taskbar-style dock replacement for macOS

https://boringbar.app/
150•a-ve•2h ago•90 comments

Bring Back Idiomatic Design

https://essays.johnloeber.com/p/4-bring-back-idiomatic-design
316•phil294•7h ago•151 comments

Most people can't juggle one ball

https://www.lesswrong.com/posts/jTGbKKGqs5EdyYoRc/most-people-can-t-juggle-one-ball
105•surprisetalk•3d ago•36 comments

Show HN: Claudraband – Claude Code for the Power User

https://github.com/halfwhey/claudraband
37•halfwhey•3h ago•8 comments

I gave every train in New York an instrument

https://www.trainjazz.com/
117•joshuawolk•2d ago•28 comments

The Peril of Laziness Lost

https://bcantrill.dtrace.org/2026/04/12/the-peril-of-laziness-lost/
6•gpm•25m ago•0 comments

Show HN: Oberon System 3 runs natively on Raspberry Pi 3 (with ready SD card)

https://github.com/rochus-keller/OberonSystem3Native/releases
125•Rochus•7h ago•16 comments

DIY Soft Drinks

https://blinry.org/diy-soft-drinks/
47•_Microft•3h ago•15 comments

Tell HN: docker pull fails in spain due to football cloudflare block

480•littlecranky67•7h ago•205 comments

EasyPost (YC S13) Is Hiring

https://www.easypost.com/careers
1•jstreebin•3h ago

Seven countries now generate 100% of their electricity from renewable energy

https://www.the-independent.com/tech/renewable-energy-solar-nepal-bhutan-iceland-b2533699.html
373•mpweiher•6h ago•167 comments

Bouncer: Block "crypto", "rage politics", and more from your X feed using AI

https://github.com/imbue-ai/bouncer
20•steveharing1•3h ago•25 comments

JVM Options Explorer

https://chriswhocodes.com/vm-options-explorer.html
149•0x54MUR41•9h ago•67 comments

Anthropic downgraded cache TTL on March 6th

https://github.com/anthropics/claude-code/issues/46829
399•lsdmtme•14h ago•301 comments

Happy Map

https://pudding.cool/2026/02/happy-map/
176•surprisetalk•5d ago•31 comments

Cooperative Vectors Introduction

https://www.evolvebenchmark.com/blog-posts/cooperative-vectors-introduction
37•JasperBekkers•2d ago•2 comments

Phyphox – Physical Experiments Using a Smartphone

https://phyphox.org/
156•_Microft•11h ago•27 comments

The Physics of GPS

https://perthirtysix.com/how-does-gps-work
80•maouida•8h ago•22 comments

Textbooks and Methods of Note-Taking in Early Modern Europe (2008)

https://dash.harvard.edu/server/api/core/bitstreams/7312037d-e342-6bd4-e053-0100007fdf3b/content
11•mooreds•3h ago•0 comments

A Tour of Oodi

https://blinry.org/oodi/
86•zdw•3d ago•28 comments

Exploiting the most prominent AI agent benchmarks

https://rdi.berkeley.edu/blog/trustworthy-benchmarks-cont/
473•Anon84•1d ago•118 comments

I run multiple $10K MRR companies on a $20/month tech stack

https://stevehanov.ca/blog/how-i-run-multiple-10k-mrr-companies-on-a-20month-tech-stack
714•tradertef•14h ago•409 comments

Doom, Played over Curl

https://github.com/xsawyerx/curl-doom
77•creaktive•10h ago•11 comments

Investigating How Long-Distance Couples Use Digital Games to Facilitate Intimacy

https://arxiv.org/abs/2505.09509
19•radeeyate•3h ago•4 comments

Mark's Magic Multiply

https://wren.wtf/shower-thoughts/marks-magic-multiply/
8•luu•1d ago•0 comments

Floyd's Sampling Algorithm

https://buttondown.com/jaffray/archive/floyds-sampling-algorithm/
33•ibobev•5d ago•2 comments

Google Removes "Doki Doki Literature Club" from Google Play

https://bsky.app/profile/serenityforge.com/post/3mj3r4nbiws2t
4•super256•16m ago•0 comments

The Miller Principle (2007)

https://puredanger.github.io/tech.puredanger.com/2007/07/11/miller-principle/
75•FelipeCortez•5d ago•51 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•10mo 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.