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How I use LLMs to learn complex topics

https://laurentiugabriel.github.io/blog/articles/how-i-use-llms-to-learn/
273•laurentiurad•3h ago•150 comments

The Hacker's Renaissance

https://phrack.org/issues/72/19#article
61•yu3zhou4•2h ago•39 comments

New Zealand lost its music media, and what we're building to replace it

https://propelmusic.co.nz/articles/the-sound-went-quiet-nz-music-media
38•berghoffer•2h ago•17 comments

Ask HN: What are you working on? (August 2026)

141•david927•5h ago•526 comments

Mea Culpa – Dark Hours

https://blog.terrygodier.com/2026/08/09/mea-culpa-dark-hours.html
521•satvikpendem•9h ago•239 comments

The tragedy of the commons, AI edition

https://www.economist.com/britain/2026/08/06/the-tragedy-of-the-commons-ai-edition
50•simonpure•3h ago•20 comments

Cool URIs Don't Change (1998)

https://www.w3.org/Provider/Style/URI
155•Klaster_1•8h ago•29 comments

Tuxedo No. 2 – Cocktail recipes

https://tuxedono2.com
18•smartmic•2h ago•3 comments

Taxi drivers rarely die of Alzheimer's

https://theconversation.com/taxi-drivers-rarely-die-of-alzheimers-how-complex-mental-maps-and-spa...
131•jader201•7h ago•108 comments

OpenChamber: An Agentic Development Environment

https://openchamber.dev/
88•hexomancer•5h ago•47 comments

Andrew Wiles on proving Fermat’s Last Theorem (1995) [video]

https://www.youtube.com/watch?v=GS7CxAtV5Ks
18•jackdoe•3d ago•11 comments

I made tinnitus my friend, then it disappeared [video]

https://mynoise.net/vlog.php?ep=20260803
37•gregsadetsky•4h ago•11 comments

The main way I've seen people turn ideologically crazy (2025)

https://blog.andymasley.com/p/the-main-way-ive-seen-people-turn
66•mef•2h ago•45 comments

Show HN: Lumabri – What if LLMs worked like Napster?

https://github.com/JustVugg/lumabri
6•vforno•38m ago•1 comments

How Golden Is Silence, Actually?

https://www.newyorker.com/magazine/2026/08/10/silence-kate-mcloughlin-book-review
26•tintinnabula•3d ago•9 comments

Touring the Consensus, Six Months In

https://theconsensus.dev/blog/2026/08/05/touring-the-consensus-six-months-in.html
4•tosh•3d ago•0 comments

Everything you do is being recorded

https://www.theatlantic.com/technology/2026/05/ai-wearable-surveillance-countermeasures/687203/
165•ike_usawa•11h ago•138 comments

When Compilers Disagree About UTF‑8

https://nemanjatrifunovic.substack.com/p/when-compilers-disagree-about-utf8
24•rbanffy•4d ago•5 comments

John C. Lilly on solid state intelligence and the elimination of man (1978)

https://kibotronics.net/unlisted/lilly-machines/
111•Kiboneu•9h ago•71 comments

Show HN: Alphabet Soup, a multiplayer game, build the longest word to win

https://alphabetsoup.club
17•johnchinjew•2h ago•10 comments

Windows 11's built-in Weather app wastes more than 1 GB of RAM

https://www.notebookcheck.net/Windows-11-s-built-in-Weather-app-wastes-more-than-1-GB-of-RAM.1364...
303•akyuu•7h ago•256 comments

Show HN: A Project Oberon System version running on RISC-V instead of RISC-5

https://github.com/rochus-keller/OberonSystem/tree/op2-rv32
99•Rochus•10h ago•16 comments

The climate benefits of retiring an operational combustion engine vehicle

https://www.science.org/doi/10.1126/science.adv5441
11•toomuchtodo•2h ago•11 comments

Two wheels, a few tradeoffs, and gas prices

https://blog.raed.dev/posts/motocycle/
15•Raed667•3h ago•13 comments

Crickets as pets

https://en.wikipedia.org/wiki/Crickets_as_pets
71•Michelangelo11•4d ago•33 comments

Georgia police officers fired after Flock camera misuse

https://www.wtoc.com/2026/08/07/savannah-police-department-fires-6-employees-over-flock-safety-sy...
21•chirau•1h ago•4 comments

Reviving a four year old reMarkable 2

https://oskrim.github.io/hardware/2026/08/09/remarkable-over-ssh.html
107•tremguy•11h ago•83 comments

There Are Magic Hexagons of Every Order

https://gukov.dev/math/2026/08/02/new-magic-hexagons.html
176•gukoff•15h ago•28 comments

To Recruit Teachers, School Districts Are Building Homes

https://www.nytimes.com/2026/07/28/business/affordable-housing-schools-teachers.html
9•mooreds•1h ago•0 comments

Human vs. AI – Diff-based line-level provenance for text under agentic editing

https://github.com/eighttrigrams/us-vs-them
39•eighttrigrams•7h ago•9 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.