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Apple's Q4 2025 margin on Services was 76.5%

https://asymco.com/2026/02/01/margin-call-3/
47•zdw•31m ago•13 comments

Iran summons families of exiled journalists to halt their activities

https://www.iranintl.com/en/202602017863
32•ukblewis•17m ago•10 comments

1-Click RCE to steal your Moltbot data and keys

https://depthfirst.com/post/1-click-rce-to-steal-your-moltbot-data-and-keys
94•arwt•2h ago•39 comments

Apple I Advertisement (1976)

http://apple1.chez.com/Apple1project/Gallery/Gallery.htm
144•janandonly•4h ago•101 comments

Adventure Game Studio: OSS software for creating adventure games

https://www.adventuregamestudio.co.uk/
225•doener•8h ago•41 comments

Netbird – Open Source Zero Trust Networking

https://netbird.io/
606•l1am0•12h ago•223 comments

Efficient String Compression for Modern Database Systems

https://cedardb.com/blog/string_compression/
50•jandrewrogers•2d ago•4 comments

I taught my neighbor to keep the volume down

https://idiallo.com/blog/teaching-my-neighbor-to-keep-the-volume-down
338•firefoxd•3h ago•100 comments

Typechecking is undecidable when 'type' is a type (1989) [pdf]

https://dspace.mit.edu/bitstream/handle/1721.1/149366/MIT-LCS-TR-458.pdf?sequence=6
28•zem•2d ago•6 comments

TIL: Apple Broke Time Machine Again on Tahoe

https://taoofmac.com/space/til/2026/02/01/1630
108•rcarmo•2h ago•51 comments

MicroPythonOS graphical operating system delivers Android-like user experience

https://www.cnx-software.com/2026/01/29/micropythonos-graphical-operating-system-delivers-android...
154•mikece•3d ago•42 comments

A Crisis comes to Wordle: Reusing old words

https://forkingmad.blog/wordle-crisis/
28•cyanbane•4h ago•21 comments

Clearspace (YC W23) Is Hiring an Applied Researcher (ML)

https://www.ycombinator.com/companies/clearspace/jobs/GOWiDwp-research-engineer-at-clearspace
1•anteloper•3h ago

Towards a science of scaling agent systems: When and why agent systems work

https://research.google/blog/towards-a-science-of-scaling-agent-systems-when-and-why-agent-system...
23•gmays•4h ago•13 comments

Reliable 25 Gigabit Ethernet via Thunderbolt

https://kohlschuetter.github.io/blog/posts/2026/01/27/tb25/
173•kohlschuetter•5d ago•94 comments

Show HN: ÆTHRA – Writing Music as Code

44•CzaxTanmay•2d ago•12 comments

Amiga Unix (Amix)

https://www.amigaunix.com/doku.php/home
96•donatj•11h ago•34 comments

FOSDEM 2026 – Open-Source Conference in Brussels – Day#1 Recap

https://gyptazy.com/blog/fosdem-2026-opensource-conference-brussels/
158•yannick2k•11h ago•95 comments

What I learned building an opinionated and minimal coding agent

https://mariozechner.at/posts/2025-11-30-pi-coding-agent/
317•SatvikBeri•12h ago•136 comments

The Book of PF, 4th edition

https://nostarch.com/book-of-pf-4th-edition
185•0x54MUR41•14h ago•35 comments

English professors double down on requiring printed copies of readings

https://yaledailynews.com/articles/english-professors-double-down-on-requiring-printed-copies-of-...
87•cmsefton•6h ago•120 comments

Jack Kerouac's 37 metre-long, first draft scroll of On the Road to be auctioned

https://www.theguardian.com/books/2026/jan/30/jack-kerouac-on-the-road-first-draft-scroll-to-be-a...
52•mitchbob•2d ago•19 comments

VisualJJ – Jujutsu in Visual Studio Code

https://www.visualjj.com/
138•demail•4d ago•51 comments

List animals until failure

https://rose.systems/animalist/
305•l1n•21h ago•165 comments

Anciente map of Fairyland. Places from nursery rhymes, fairy tales etc.

https://collections.leventhalmap.org/search/commonwealth:3f463773q
44•speckx•5d ago•9 comments

Good if make prior after data instead of before

https://www.lesswrong.com/posts/JAA2cLFH7rLGNCeCo/good-if-make-prior-after-data-instead-of-before
5•surprisetalk•5d ago•0 comments

Aging muscle stem cells shift from rapid repair to long-term survival

https://phys.org/news/2026-01-sprint-marathon-aging-muscle-stem.html
63•bikenaga•4h ago•15 comments

The history of C# and TypeScript with Anders Hejlsberg [video]

https://www.youtube.com/watch?v=uMqx8NNT4xY
173•doppp•5d ago•135 comments

A web server on a single floppy disk

http://floppy.ddns.net/
77•ActionRetro•3d ago•31 comments

MRI scans show exercise can make the brain look younger

https://www.sciencedaily.com/releases/2026/01/260121034130.htm
6•amichail•27m 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•8mo ago

Comments

stevoski•8mo 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•8mo 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•8mo 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_•8mo ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•8mo 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•8mo 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•8mo 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•8mo 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•8mo 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•8mo ago
stupid af
Traubenfuchs•8mo 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•8mo 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•8mo ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•8mo ago
But can you leetcode heh.
TYMorningCoffee•8mo 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.