frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Muse Glimmer: 30B-parameter model optimized for always-on local agent workflows

https://research.meta.ai/blog/introducing-muse-glimmer-open-agentic-model
1004•riordan•14h ago•563 comments

Show HN: Needle2: 14MB agentic LLM for phones, wearables, smart home and robots

https://cactuscompute.com/needle
121•HenryNdubuaku•6h ago•62 comments

Mark Zuckerberg attacks 'closed' AI rivals as Meta returns to open models

https://www.ft.com/content/4e3957f8-ea7c-4c46-a3de-cdce8e526878
342•root-parent•10h ago•360 comments

Rust SIMD on the GPU

https://www.vectorware.com/blog/simd-on-gpu/
112•sagacity•6h ago•57 comments

Publishing Schematics Before “Open Source” Was a Word

https://fabscene.medium.com/publishing-schematics-before-open-source-was-a-word-55-years-of-akizu...
48•extralongdivisi•3d ago•13 comments

Sonic Pi v5

https://www.patreon.com/samaaron/posts/sonic-pi-v5-166001392
293•samaaron•3d ago•76 comments

Confessions of a Long-Distance Sailor

https://arachnoid.com/lutusp/sailbook.html
48•AntiRush•3h ago•7 comments

The "mechanical miracle" that ruined Mark Twain's life

https://resobscura.substack.com/p/the-mechanical-miracle-that-ruined
9•benbreen•5d ago•3 comments

World Train Map – 1247 train routes around the world

https://worldtrainmap.com/
9•Flightmussy•1h ago•1 comments

Stop Killing Games: It's time to sue Sony, join us

https://www.massaschadeconsument.nl/collectieve-acties/playstation/
128•EDM115•3h ago•52 comments

Google Search Is Dying. What Comes Next Is Worse

https://thewalrus.ca/google-search-is-dying/
63•awnird•1h ago•49 comments

Exploiting System Management Mode with a very long interrupt

https://github.com/xoreaxeaxeax/smiiiiiiiiiiiiiiii
117•WhiteDawn•8h ago•39 comments

Squeak 6.1

https://squeak.org/release_notes/6.1/
213•fniephaus•12h ago•110 comments

Stowaway – take the window seat on any plane or satellite overhead

https://stowaway.live/
81•thunderbong•3d ago•10 comments

Amazon backs power plant that may become top source of US climate pollution

https://arstechnica.com/tech-policy/2026/08/amazon-funds-biggest-gas-power-plant-in-us-despite-cl...
143•pjmlp•2h ago•92 comments

Humanising LLM Outputs Is Dumb

https://kuber.studio/blog/Reflections/Humanising-LLM-Outputs-is-Actually-Dumb
141•kuberwastaken•10h ago•84 comments

Launch HN: Stoa Markets (YC S26) – A Marketplace for GPUs and AI Servers

https://www.stoaexchange.com
62•erenberke•7h ago•39 comments

Show HN: Scroll through all 43252003274489856000 Rubik's Cube states

https://everycube.alen.is/
4•Alen123•1h ago•0 comments

What's the best programming language for coding agents?

http://danluu.com/pl-tokens/
34•chaychoong•7h ago•15 comments

Ask HN: In your experience, what are sound conventions for e-ink UI development?

136•BoxOfRain•3d ago•47 comments

Parametron: 50s Japanese computer that uses neither transistors nor vacuum tubes

https://ethw.org/Milestones:Parametron,_1954
177•xeonmc•13h ago•45 comments

Letter to Governor Abbott on responsible AI infrastructure in Texas

https://openai.com/index/responsible-ai-infrastructure-texas/
84•hackerBanana•9h ago•157 comments

The Psychedelic Toad of the Sonoran Desert

https://en.wikipedia.org/wiki/Bufo_Alvarius:_the_Psychedelic_Toad_of_the_Sonoran_Desert
69•simonebrunozzi•6d ago•49 comments

Mark Zuckerberg's Yacht Refused to Help Ship in Distress

https://nymag.com/intelligencer/article/zuckerbergs-yacht-booed-over-failing-to-help-stranded-boa...
27•master_crab•1h ago•6 comments

Magnitude 7.4 Earthquake – 5 km S of San José del Palmar, Colombia

https://earthquake.usgs.gov/earthquakes/eventpage/us6000tjl2/executive
157•Bender•8h ago•62 comments

Exploring Claude/GPT Knowledge Cutoffs and Pre-Training Timelines

https://blog.sshh.io/p/exploring-claudegpt-knowledge-cutoffs
92•sshh12•9h ago•14 comments

Tail-call optimization in C is relatively recent (2025)

https://lwn.net/Articles/1034703/
117•prakashqwerty•12h ago•112 comments

Mistral Patent for “Code implemented tool calls”

https://patentsgazette.uspto.gov/week26/OG/html/1547-5/US12670045-20260630.html
206•theanonymousone•10h ago•170 comments

Extreme 220GHz+Broadband Silicon Capacitor X2SC 0201M 22nF BV11

https://pim.murata.com/asset/pim4/siliconCapacitor/SICAP_X2SC422522_PDF_SILICONCAPACITOR
59•peter_d_sherman•8h ago•24 comments

50k Boat Names

https://www.beautifulpublicdata.com/boat-names/
149•jonathanmkeegan•11h 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.