frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Simons Foundation Launches $15M Effort to Help Mathematicians Navigate AI Era

https://www.simonsfoundation.org/news/simons-foundation-launches-15m-effort-to-help-mathematician...
79•aaraujo002•1h ago•42 comments

Steam Client Is Now Faster Than Epic's New Vibe Coded Launcher

https://respawnfirst.com/steam-client-is-now-faster-than-epics-new-vibe-coded-launcher/
24•starkparker•9m ago•9 comments

I designed a nose guard for my dog and gave it away. Now 500 dogs wear one

https://snoutcover.com/one-year
41•ragswag•27m ago•11 comments

Wayland desktop for Linux with skeuomorphic design

https://github.com/fyzugx/DEsk
183•FinalDestiny•2h ago•70 comments

I know why Mathematicians weep

https://www.derekthompson.org/p/i-know-why-the-mathematicians-weep
138•RickJWagner•2h ago•193 comments

Libreboot 26.10 "Ominous Olive" released with UEFI, Chromebook support

https://libreboot.org/news/libreboot2610.html
144•iamnothere•3h ago•70 comments

Celebrating 70 Years of Fortran

https://fortran-lang.org/news/2026/09-15-Fortran-birthday/
49•rbanffy•1h ago•19 comments

Show HN: Unfenced – Land for sale that borders public land

https://unfenced.land/
147•otherwatersflow•4h ago•105 comments

Zero-Click Spyware Delivered via Targeted Ads: AdFection

https://citizenlab.ca/research/how-discover-tech-turned-targeted-ads-into-a-pipeline-for-spyware/
122•jcomp•5h ago•13 comments

Things to know when you get cancer

https://jjmaxwell4.com/writing/things-to-know-when-you-get-cancer/
1757•jjmaxwell4•20h ago•416 comments

Prompt injection in HTTP headers: what 217M web responses show

https://www.signalscorps.com/blog/prompt-injection-in-http-headers/
31•panoramas4good•1h ago•8 comments

C++26 Contracts: Introduction to Preconditions and Postconditions

https://www.cppstories.com/2026/cpp26_contracts/
60•ibobev•3h ago•56 comments

Wanted to download an ISO, ended up writing a kernel exploit

https://blog.dfb.sh/blog/eap770-root-for-two-zeros/
255•0xdeafbeef•2d ago•133 comments

GridSnap – an open-source Divvy-style window snapper for macOS

https://github.com/konieczkow/gridsnap
24•zderror•2h ago•14 comments

OpenCode 2.0

https://anoma.ly/notes/opencode-2-0/
782•gmays•19h ago•332 comments

The largest eagle hunted unlike any other bird of prey (2021)

https://www.nhm.ac.uk/discover/news/2021/december/worlds-largest-eagle-hunted-unlike-any-other-bi...
14•EndXA•1d ago•0 comments

The Haunted Toys R Us

https://www.retroist.com/p/the-haunted-toys-r-us
37•speckx•2d ago•21 comments

Tiny Little Office

https://tinylittleoffice.com/
590•donohoe•18h ago•150 comments

The First Social Network: In rural Argentina residents send messages w AM radio

https://www.newyorker.com/magazine/2026/10/19/the-first-social-network
103•bookofjoe•1d ago•41 comments

Do dentists know what they're doing?

https://mapwriting.substack.com/p/dentists
893•doitLP•3d ago•638 comments

Show HN: Indigene – Native plants for where you stand

https://indigene.app/
90•olivierlacan•2d ago•15 comments

Biscoff Cookies Were Supposed to Be Temporary. Then Passengers Fell in Love

https://www.seriouseats.com/biscoff-history-12168161
4•mhb•1d ago•0 comments

Americans' social activity has steeply declined in the past 30 years

https://www.dataforprogress.org/blog/2026/9/29/americans-social-activity-has-steeply-declined-in-...
523•hubraumhugo•1d ago•500 comments

Catch a Bird – I made it for my own sanity

https://catchabird.com
333•eduardsik•3d ago•98 comments

Using AI to reverse engineer hardware

https://blogs.gnome.org/uraeus/2026/10/15/aiandreverseengineerhardware/
38•ErenayDev•1h ago•26 comments

LFM2.5-24B-A2B: Built for fast on-device agents

https://www.liquid.ai/blog/lfm2-5-24b-a2b
266•gmays•16h ago•71 comments

Creating a Garmin "MCP"

https://jackantico.io/garmin-mcp
49•ricotico060•1d ago•56 comments

Sticky alpine flower confirms Darwin's 150-year-old carnivorous plant prediction

https://phys.org/news/2026-08-sticky-alpine-darwin-year-carnivorous.html
87•maxall4•2d ago•36 comments

It took me nine years to hack my Xbox 360

https://kennedn.com/blog/posts/glitching/
152•kennedn•2d ago•42 comments

Tracing Mystery Network Traffic with eBPF Across HRT's Global Compute Cluster

https://www.hudsonrivertrading.com/hrtbeat/long-on-research-short-on-bandwidth/
37•theHRTBeat•2d ago•4 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.