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Claude Design

https://www.anthropic.com/news/claude-design-anthropic-labs
650•meetpateltech•5h ago•440 comments

Claude Opus 4.7 costs 20–30% more per session

https://www.claudecodecamp.com/p/i-measured-claude-4-7-s-new-tokenizer-here-s-what-it-costs-you
429•aray07•5h ago•259 comments

All 12 moonwalkers had "lunar hay fever" from dust smelling like gunpowder (2018)

https://www.esa.int/Science_Exploration/Human_and_Robotic_Exploration/The_toxic_side_of_the_Moon
130•cybermango•2h ago•64 comments

Show HN: Smol machines – subsecond coldstart, portable virtual machines

https://github.com/smol-machines/smolvm
121•binsquare•3h ago•54 comments

Isaac Asimov: The Last Question (1956)

https://hex.ooo/library/last_question.html
535•ColinWright•8h ago•207 comments

NASA Force

https://nasaforce.gov/
146•LorenDB•4h ago•170 comments

Middle schooler finds coin from Troy in Berlin

https://www.thehistoryblog.com/archives/75848
159•speckx•6h ago•71 comments

NIST gives up enriching most CVEs

https://risky.biz/risky-bulletin-nist-gives-up-enriching-most-cves/
130•mooreds•5h ago•32 comments

I built a 3D printing business and ran it for 8 months

https://www.wespiser.com/posts/2026-04-12-3D-Printing-Biz.html
30•wespiser_2018•2d ago•32 comments

Webloc: Analysis of Penlink's Ad-Based Geolocation Surveillance Tech

https://citizenlab.ca/research/analysis-of-penlinks-ad-based-geolocation-surveillance-tech/
30•Cider9986•3d ago•0 comments

Ban the sale of precise geolocation

https://www.lawfaremedia.org/article/it-is-time-to-ban-the-sale-of-precise-geolocation
467•hn_acker•6h ago•138 comments

Why, After All These Years, MZI-Based Transistorlessness Might Finally Be Here

https://write.as/mnggfj7asl07k
9•aniijbod•3d ago•1 comments

Healthchecks.io now uses self-hosted object storage

https://blog.healthchecks.io/2026/04/healthchecks-io-now-uses-self-hosted-object-storage/
118•zdw•6h ago•61 comments

Kyber (YC W23) Is Hiring a Head of Engineering

https://www.ycombinator.com/companies/kyber/jobs/TcEa3b5-head-of-engineering
1•asontha•3h ago

Show HN: PanicLock – Close your MacBook lid disable TouchID –> password unlock

https://github.com/paniclock/paniclock/
75•seanieb•4h ago•24 comments

Iceye Open Data

https://www.iceye.com/open-data-initiative
89•marklit•6h ago•13 comments

Detecting DOSBox from Within the Box

https://datagirl.xyz/posts/dos_inside_the_box.html
39•atan2•4h ago•6 comments

Solitaire simulator for finding the best strategy: Current record is 8.590%

https://github.com/dacracot/Klondike3-Simulator
30•PaulHoule•19h ago•13 comments

The Gregorio project – GPL tools for typesetting Gregorian chant

https://gregorio-project.github.io/index.html
36•mcookly•5h ago•9 comments

Connie Converse was a folk-music genius. Then she vanished

https://www.bbc.com/culture/article/20260413-the-mystery-of-a-missing-folk-music-pioneer
34•mellosouls•2d ago•8 comments

Show HN: Stage – Putting humans back in control of code review

https://stagereview.app/
71•cpan22•1d ago•75 comments

Designing the Transport Typeface

https://www.thamesandhudson.com/blogs/all-news-features/designing-the-transport-typeface-margaret...
56•speckx•2d ago•7 comments

Ada, its design, and the language that built the languages

https://www.iqiipi.com/the-quiet-colossus.html
226•mpweiher•11h ago•160 comments

Teddy Roosevelt and Abraham Lincoln in the same photo (2010)

https://prologue.blogs.archives.gov/2010/11/09/teddy-roosevelt-and-abraham-lincoln-in-the-same-ph...
115•bryanrasmussen•11h ago•28 comments

Reflections on 30 years of HPC programming

https://chapel-lang.org/blog/posts/30years/
125•matt_d•3d ago•91 comments

Tesla tells HW3 owner to 'be patient' after 7 years of waiting for FSD

https://electrek.co/2026/04/17/tesla-hw3-owners-be-patient-7-years-fsd/
31•breve•1h ago•5 comments

Random musings: 80s hardware, cyberdecks

https://strangelyentangled.com/blog/musings-80s-hardware/
15•speckx•3h ago•10 comments

Average is all you need

https://rawquery.dev/blog/average-is-all-you-need
72•AlexC04•4d ago•75 comments

FIM – Linux framebuffer image viewer

https://www.nongnu.org/fbi-improved/
132•Mr_Minderbinder•13h ago•65 comments

NeoGeo AES+: SNK announces reissue of retro console without emulation

https://www.heise.de/en/news/NeoGeo-AES-SNK-announces-reissue-of-retro-console-without-emulation-...
31•doener•2h ago•17 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•11mo ago

Comments

stevoski•11mo 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•11mo 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•11mo 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_•11mo ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•11mo 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•11mo 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•11mo 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•11mo 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•11mo 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•11mo ago
stupid af
Traubenfuchs•11mo 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•11mo 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•11mo ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•11mo ago
But can you leetcode heh.
TYMorningCoffee•11mo 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.