frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Tell HN: I've been paying for a rural Tanzanian's education for 10 years

416•lukehandcool•2h ago•102 comments

Trump administration is suspending Microsoft from a green card program

https://apnews.com/article/h1b-visa-program-vance-microsoft-e7b3a407f822702b269ee277d21343ea
331•alephnerd•2h ago•453 comments

Whistle: Speech to Text in 16.9 MB

https://cactuscompute.com/blog/whistle
13•gmays•18m ago•0 comments

Beauty in DVD Menus

https://vale.rocks/posts/dvd-menus
149•speckx•3h ago•100 comments

“Math 2.0” will need to value mathematical progress more holistically

https://mathstodon.xyz/@tao/117395269325940185
538•ent101•12h ago•536 comments

Archaeologists Are Reconstructing the 'Invisible' Technologies of the Stone Age

https://www.smithsonianmag.com/science-nature/archaeologists-are-reconstructing-the-invisible-tec...
36•Hooke•19h ago•11 comments

The Slow Formation of Durable Software

https://newsletter.dancohen.org/archive/the-slow-formation-of-durable-software/
182•benbreen•2d ago•63 comments

4-hour battery storage is cheaper to install than gas turbines all across globe

https://www.solarpowerworldonline.com/2026/10/4-hour-battery-storage-is-cheaper-to-install-than-g...
73•01-_-•1h ago•25 comments

Step 5 Preview, a 1M-context MoE from StepFun, shows up on OpenRouter

https://openrouter.ai/stepfun/step-5-preview
14•AnneWodell•58m ago•6 comments

Sub-1-Bit LLM Compression via Latent Factorization

https://github.com/SamsungLabs/LittleBit
51•brainless•3h ago•7 comments

Telnet BBS Guide

https://www.telnetbbsguide.com/
75•kmstout•4h ago•26 comments

Claude Haiku 5.5

https://www.anthropic.com/claude-haiku-5-5
1000•sfkgtbor•23h ago•471 comments

I gave Opus 5.5 one prompt and six hours to visualize Invisible Cities

https://quesma.com/blog/invisible-cities-one-shot/
240•stared•5h ago•130 comments

The 15-year search for a band that charted once and vanished

https://shahidhussain.com/writing/search-for-salvage/
303•shahidhussain•3d ago•109 comments

OpenAI withdraws three mathematical results

https://twitter.com/danintheory/status/2108065033070789090
132•sashank_1509•10h ago•438 comments

2027 Web Platform Feature Ranking

https://interop-rank.fxdx.dev/
38•jaffathecake•3h ago•7 comments

Time Travel in Braid (2015)

https://qntm.org/braid
72•Ariarule•3d ago•28 comments

Float and integer arithmetic follow two different paradigms

https://blog.pkh.me/p/49-float-and-integer-arithmetic-follow-two-different-paradigms.html
44•ibobev•3d ago•9 comments

Living off-grid: Hundred Rabbits

https://100r.ca/site/home.html
335•Muhammad523•2d ago•143 comments

Margaret Hamilton has died

https://news.mit.edu/2026/margaret-hamilton-computing-pioneer-dies-1007
2030•muglug•20h ago•236 comments

How did Rosalind Franklin miss the helix in her iconic DNA image? She didn't

https://www.science.org/content/article/how-did-rosalind-franklin-miss-helix-her-iconic-dna-image...
277•pavel_lishin•2d ago•94 comments

Orkut.com

https://orkut.com/
63•andreynering•3h ago•42 comments

GPT‑6 and Intelligent UI for everyone

https://openai.com/index/gpt-6-for-everyone/
730•joshuawright11•23h ago•428 comments

'Jonathan' is the oldest land animal on Earth

https://www.404media.co/oldest-living-land-animal-jonathan-the-tortoise/
242•gumby•21h ago•135 comments

Cleo (Mathematician)

https://en.wikipedia.org/wiki/Cleo_(mathematician)
235•djoldman•1d ago•49 comments

The Mathocalypse

https://scottaaronson.blog/?p=10169
344•6bitquant•21h ago•361 comments

Anthropic bans 'abusive or cruel behavior' towards Claude

https://www.theverge.com/ai-artificial-intelligence/1008100/anthropic-new-usage-policy-abuse-claude
4•mikelgan•10m ago•0 comments

Show HN: Bigwords.page – Turn any screen into a sign. The URL is the app

https://bigwords.page/
644•SpeakingOfBrad•1d ago•149 comments

VECOS – A windows-like operating system for the Vectrex for the UVMC2 [video]

https://www.youtube.com/watch?v=9ranfp_vz30
46•CharlesW•1d ago•11 comments

In Vienna and Beijing, the first (thorium) nuclear clocks begin to tick

https://www.nytimes.com/2026/10/07/science/first-nuclear-clocks-thorium-229.html
155•gumby•23h ago•46 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.