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F-Droid 2.0

https://f-droid.org/2026/09/24/f-droid-2.0-a-new-chapter-for-android-freedom.html
1108•daveoc64•14h ago•290 comments

Goodbye Google

https://robert.ocallahan.org/2026/09/goodbye-google.html
109•Murmuring9087•1h ago•76 comments

Show HN: Make cursed fonts like Times New Bastard

https://bastardica.mitpit.com
590•MitPitt•1d ago•80 comments

Show HN: Whiteboard (YC W26) – An open-source IDE for thoughtful software design

https://github.com/devdotfast/whiteboard
261•sidharthkmenon•13h ago•99 comments

Why is the liver so weirdly regenerative?

https://dynomight.substack.com/p/liver
351•jbotz•14h ago•181 comments

2DWillNeverDie

https://2dwillneverdie.com/
188•surprisetalk•2d ago•24 comments

Fearless SIMD v1.0

https://linebender.org/blog/fearless-simd-1-0/
232•verdagon•2d ago•34 comments

Rails World 2026 Opening Keynote [video]

https://www.youtube.com/watch?v=vDjW_dRyKXY
296•an0malous•1d ago•320 comments

Toyota is taking the Corolla electric

https://electrek.co/2026/09/23/toyota-best-selling-corolla-electric/
287•cisc•1d ago•477 comments

My weird new hobby: Wandering around Tokyo on Google Maps

https://ahmedhossamdev.com/writing/my-weird-new-hobby-wandering-around-tokyo/
286•ahmedhossamdev•2d ago•125 comments

Using LLMs to trace alchemical knowledge and decode 17th century letters

https://resobscura.substack.com/p/ai-labs-need-to-start-funding-historical
108•benbreen•11h ago•19 comments

Google’s Project Suncatcher to put ML infrastructure in space

https://blog.google/innovation-and-ai/models-and-research/google-research/google-project-suncatch...
161•xnx•16h ago•297 comments

Two-tier encryption in the UK

https://macanorak.com/two-tier-encryption-in-the-uk/
412•ReturnoftheHack•19h ago•386 comments

Writing Parquet files using Haskell

https://www.datahaskell.org/blog/2026/09/18/writing-parquet-files-using-haskell.html
46•cosmic_quanta•2d ago•3 comments

Opus 5.5 is good at explainer videos

https://launchvideo.io
203•iacguy•9h ago•111 comments

Book review: Is parallel programming hard, and, if so, what can you do about it?

https://ahelwer.ca/post/2026-09-21-concurrency-textbook/
111•ahelwer•3d ago•35 comments

The Board Game of the Alpha Nerds (2014)

https://grantland.com/features/diplomacy-the-board-game-of-the-alpha-nerds/
74•neonate•9h ago•27 comments

California is chasing wealth that has feet

https://blog.landeconomics.org/p/california-is-chasing-wealth-that
215•idbnstra•9h ago•576 comments

Show HN: Air-gapped file encryption as self-decrypting HTML page

https://cms-sfx-demo.apeleg.com/
58•emurlin•23h ago•17 comments

Security auditing in the age of (good enough) AI

https://blog.trailofbits.com/2026/09/18/auditing-in-the-age-of-good-enough-ai/
84•aray07•3d ago•12 comments

Sourcehut account takeover via build logs (XSS in ansi2html)

https://blog.arusekk.pl/posts/srht-account-takeover/
96•arusekk•10h ago•17 comments

The forgotten battle of East Lansing

https://eastlansinginfo.news/the-forgotten-battle-of-east-lansing/
94•rmason•3d ago•15 comments

WaveDigger: Dig into wireless signals to discover their physical locations

https://github.com/christianrowlands/wavedigger
106•882542F3884314B•1d ago•20 comments

Show HN: Koi.rest – watch some fish and regain your balance

https://koi.rest
165•hxii•8h ago•41 comments

Nokia Design Archive (2025)

https://repo.aalto.fi/index.php?name=SO_b66a9391-dcf8-4399-8e87-611f84c3fc4c
221•pillars•20h ago•121 comments

Forging 1024-bit RSA signatures in nearly SNFS time [pdf]

https://eprint.iacr.org/2026/2131.pdf
60•int0x29•15h ago•9 comments

Geothermal heat map of US hot springs

https://www.soakingsprings.com/hot-springs/geothermal-map
97•armenarmen•1d ago•39 comments

The Bayeux Tapestry: Woven by the Victors

https://www.historytoday.com/archive/out-margins/bayeux-tapestry-woven-victors
20•prismatic•1d ago•4 comments

Motor Characterization for Small Running Robots (2016)

https://robot-daycare.com/posts/2016-01-06-motor-characterization-for-small-running-robots/
37•loughnane•3d ago•2 comments

Stable (YC W20) Is Hiring Product Engineers

https://www.usestable.com/careers/product-engineer
1•collinpham•11h ago
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.