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The Waymo World Model: A New Frontier for Autonomous Driving Simulation

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
206•xnx•1h ago•97 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
164•aktau•3h ago•81 comments

Bits About Money: Fraud Investigation Is Believing Your Lying Eyes

https://www.bitsaboutmoney.com/archive/fraud-investigation/
28•dangrossman•55m ago•12 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
60•ostacke•2h ago•16 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
84•surprisetalk•3d ago•11 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
688•cdrnsf•6h ago•306 comments

The Monad Called Free

http://blog.sigfpe.com/2014/04/the-monad-called-free.html
30•romes•3d ago•6 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
191•todsacerdoti•4h ago•114 comments

Invention of DNA "Page Numbers" Opens Up Possibilities for the Bioeconomy

https://www.caltech.edu/about/news/invention-dna-page-numbers-synthesis-kaihang-wang
103•dagurp•7h ago•64 comments

TikTok's 'Addictive Design' Found to Be Illegal in Europe

https://www.nytimes.com/2026/02/06/business/tiktok-addictive-design-europe.html
430•thm•6h ago•312 comments

A new bill in New York would require disclaimers on AI-generated news content

https://www.niemanlab.org/2026/02/a-new-bill-in-new-york-would-require-disclaimers-on-ai-generate...
400•giuliomagnifico•8h ago•150 comments

My AI Adoption Journey

https://mitchellh.com/writing/my-ai-adoption-journey
808•anurag•23h ago•320 comments

Things Unix can do atomically (2010)

https://rcrowley.org/2010/01/06/things-unix-can-do-atomically.html
213•onurkanbkrc•12h ago•82 comments

Animated Engines

https://animatedengines.com/
34•surprisetalk•22h ago•2 comments

The overlooked evolution of the humble car door handle

https://newatlas.com/automotive/evolution-car-door-handle/
8•andsoitis•3d ago•8 comments

DNS Explained – How Domain Names Get Resolved

https://www.bhusalmanish.com.np/blog/posts/dns-explained.html
89•okchildhood•3d ago•26 comments

Stay Away from My Trash

https://tldraw.dev/blog/stay-away-from-my-trash
121•EvgeniyZh•3d ago•46 comments

Systems Thinking

http://theprogrammersparadox.blogspot.com/2026/02/systems-thinking.html
213•r4um•12h ago•102 comments

We tasked Opus 4.6 using agent teams to build a C Compiler

https://www.anthropic.com/engineering/building-c-compiler
651•modeless•23h ago•647 comments

Nixie-clock using neon lamps as logic elements (2007)

https://www.pa3fwm.nl/projects/neonclock/
39•jacquesm•4d ago•6 comments

Claude Opus 4.6

https://www.anthropic.com/news/claude-opus-4-6
2205•HellsMaddy•1d ago•956 comments

Solving Shrinkwrap: New Experimental Technique

https://kizu.dev/shrinkwrap-solution/
27•spiros•15h ago•2 comments

Plasma Effect (2016)

https://www.4rknova.com/blog/2016/11/01/plasma
73•todsacerdoti•3d ago•13 comments

Recreating Epstein PDFs from raw encoded attachments

https://neosmart.net/blog/recreating-epstein-pdfs-from-raw-encoded-attachments/
465•ComputerGuru•1d ago•173 comments

Uber Found Liable in Rape by Driver, Setting Stage for Cases

https://www.nytimes.com/2026/02/05/business/uber-safety-rape-verdict.html
18•buellerbueller•50m ago•16 comments

Show HN: Daily-updated database of malicious browser extensions

https://github.com/toborrm9/malicious_extension_sentry
3•toborrm9•1h ago•2 comments

Show HN: Artifact Keeper – Open-Source Artifactory/Nexus Alternative in Rust

https://github.com/artifact-keeper
126•bsgeraci•14h ago•43 comments

LLMs could be, but shouldn't be compilers

https://alperenkeles.com/posts/llms-could-be-but-shouldnt-be-compilers/
89•alpaylan•4h ago•95 comments

The time I didn't meet Jeffrey Epstein

https://scottaaronson.blog/?p=9534
324•pfdietz•22h ago•429 comments

The RCE that AMD won't fix

https://mrbruh.com/amd/
336•MrBruh•18h ago•141 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•8mo ago

Comments

stevoski•8mo 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•8mo 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•8mo 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_•8mo ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•8mo 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•8mo 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•8mo 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•8mo 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•8mo 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•8mo ago
stupid af
Traubenfuchs•8mo 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•8mo 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•8mo ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•8mo ago
But can you leetcode heh.
TYMorningCoffee•8mo 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.