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Mistral Large 4

https://docs.mistral.ai/models/mistral-large-4-0
302•Philpax•45m ago•125 comments

Mistral Large 4: "Le Chonk"

https://mistral.ai/news/mistral-large-4/
79•j-bu•35m ago•9 comments

Release of Polars 2.0

https://pola.rs/posts/release-polars-2/
108•simicd•2h ago•17 comments

Nobel Prize in Physics goes to Francis Halzen

https://www.nobelprize.org/prizes/physics/2026/
243•solarist•4h ago•75 comments

Tapo (Rust/Python library) now speaks TP-Link's TPAP protocol

https://mihai.dinculescu.dev/posts/tapo-speaks-tpap/
6•faithraven•6m ago•0 comments

JetBrains reported a net financial loss first time in its tracked history

https://www.helgilibrary.com/companies/jetbrains
211•thw_9a83c•2h ago•232 comments

Mathematics of Geothermal Energy

https://www.ebsco.com/research-starters/power-and-energy/mathematics-geothermal-energy/
8•srameshc•56m ago•2 comments

Gleam doesn't compile to Erlang source anymore

https://gleam.run/news/gleam-doesnt-compile-to-erlang-source-anymore/
119•ingve•5h ago•36 comments

Meta's Muse Is an Adorable Privacy and Security Dumpster Fire

https://www.techdirt.com/2026/10/06/metas-muse-is-an-adorable-privacy-and-security-dumpster-fire/
67•beardyw•1h ago•17 comments

Show HN: Jotbus – a shared encrypted scratchpad for coding agents

https://jotbus.com/
4•shake-n-fries•16m ago•1 comments

Show HN: Parseable, an open observability datalake, handles 100M time-series/min

https://www.parseable.com
3•yashdotrv•30m ago•0 comments

Nature's capacity to 'bounce back' when species are lost is vastly overestimated

https://phys.org/news/2026-10-nature-capacity-species-lost-vastly.html
91•pseudolus•2h ago•33 comments

Beam: Reflection's 501B open-weight model

https://reflection.ai/blog/introducing-beam
486•Philpax•18h ago•158 comments

Find the flattest route between any two points in SF

https://flattensf.com/
244•ishan0102•16h ago•84 comments

World's First enhanced geothermal power plant completed in just 23 months

https://techcrunch.com/2026/10/01/worlds-first-enhanced-geothermal-power-plant-completed-in-just-...
53•hochmartinez•2h ago•8 comments

Dust: Pretraining Transformers Without Backpropagation

https://qlabs.sh/research/dust
236•E-Reverance•16h ago•62 comments

Friendship ended with Deno, now Node is my best friend

https://dbushell.com/2026/10/03/deno-to-node/
234•ibobev•15h ago•148 comments

Accountability mechanisms can be joyful (2024)

https://liquidbrain.net/blog/accountability-and-joy/
60•luu•2d ago•19 comments

Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates

https://www.vals.ai/blogs/room-temperature-magnetic-semiconductors
408•outlier99•17h ago•274 comments

Web Search API

https://developers.cloudflare.com/changelog/post/2026-10-02-introducing-web-search-api/
570•tosh•1d ago•266 comments

Two ARM64-specific compiler optimization bugs, in GCC 15/16 and Rust, hit curl

https://mastodon.social/@bagder/117392573268225646
8•torutofu•55m ago•1 comments

Oracle Triggered the Implosion of the AI Bubble

https://medium.com/predict/what-everyone-had-been-waiting-for-and-fearing-oracle-just-triggered-t...
7•mpweiher•18m ago•4 comments

Resurrecting iChat Audio and Video Conferencing

https://blog.pipetogrep.org/2026/09/11/resurrecting-ichat-audio-and-video-conferencing/
78•thepipetogrep•10h ago•16 comments

ASOS app users receive push notifications apparently sent by hackers

https://www.bbc.co.uk/news/articles/cj62ylzpr6d3o
51•helsinkiandrew•3h ago•30 comments

Competitive Programmer's Handbook (2018) [pdf]

https://cses.fi/book/book.pdf
246•vinhnx•3d ago•59 comments

Testing 12 different Zigbee temperature/humidity sensors

https://smarthomescene.com/reviews/best-selling-zigbee-temperature-sensors-tested/
154•walrus01•2d ago•88 comments

Example.com just launched the biggest redesign in decades

https://www.debugbear.com/blog/example-dot-com-redesign-history
270•jgx0•15h ago•181 comments

Direct retinal projection display for smart glasses using a meta-optic mirror

https://www.tdk.com/en/news_center/press/20261002_01.html
58•bookofjoe•2d ago•21 comments

Using A.I. and machine learning to decode communication of sperm whales

https://blue-continuum.com/the-man-who-listens-to-whales
54•dnetesn•2d ago•38 comments

The lamps in my house

https://arslan.io/2026/10/05/the-lamps-in-my-house/
259•farslan•23h ago•103 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.