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More Tailscale tricks for your jailbroken Kindle

https://tailscale.com/blog/jailbroken-kindle-proxy-tun-modes
157•Error6571•3h ago•47 comments

User Interfaces of the Demo Scene

https://www.datagubbe.se/scenegui/
146•zdw•4h ago•24 comments

Codex Security

https://github.com/openai/codex-security
489•bakigul•11h ago•161 comments

Show HN: I was tired of opening 2 tabs for every HN link, so I made a userscript

https://github.com/twalichiewicz/HNewhere
300•twalichiewicz•10h ago•77 comments

Cracking Windows Open: Porting RADV to Win32

https://www.collabora.com/news-and-blog/news-and-events/cracking-windows-open-porting-radv-to-win...
37•zdw•4h ago•8 comments

Substack writers, you need a website

https://elizabethtai.com/2026/06/10/substack-writers-you-need-a-website/
521•speckx•15h ago•261 comments

Half-Life ported to Mac OS 9

https://mac-classic.com/news/half-life-ported-to-mac-os-9/
233•freediver•11h ago•109 comments

LearnVector – Andrew Ng's AI company building one‑to‑one learning experiences

https://learnvector.ai/
173•ajhai•6h ago•100 comments

SQLite in Production: Optimizing WAL Mode, Concurrency, and VFS Layers

https://micrologics.org/blog/sqlite-in-production-optimizing-wal-mode-concurrency-and-vfs-layers-...
9•ankitg12•1h ago•0 comments

ReFrame – The EPaper Camera

https://reframe.camera/
117•phil294•9h ago•20 comments

Kimi K3 Architecture Overview and Notes

https://sebastianraschka.com/blog/2026/kimi-k3-architecture-notes.html
408•ModelForge•16h ago•72 comments

Transformer Transformer: A Unified Model for Motion-Conditioned Robot Co-Design

https://transformer-transformer.github.io/
48•ilreb•4h ago•2 comments

Truth is not a direction: a Tarski attack on LLM probes

https://abeljansma.nl/2026/07/10/truth-is-not-a-direction.html
89•abelaer•1d ago•34 comments

Teach yourself programming in ten years (1998)

https://www.norvig.com/21-days.html
127•vinhnx•3d ago•76 comments

Hubble: Open-source notetaking app for you and your agents

https://www.hubble.md/
104•handfuloflight•8h ago•35 comments

Steel Bank Common Lisp version 2.6.7

https://sbcl.org/all-news.html?2.6.7
229•tmtvl•15h ago•98 comments

Delayed Gratification – Proud to Be 'Last to Breaking News'

https://www.slow-journalism.com/
292•speerer•16h ago•164 comments

Hooray for the Sockets Interface

https://blog.apnic.net/2026/07/28/hooray-for-the-sockets-interface/
31•jruohonen•6h ago•18 comments

Mag Computer: A Mag History of RAM (1960–2025)

https://magworld.pw/episodes/computer/
21•evakhoury•4d ago•2 comments

Fixing a bug with byte order marks

https://alexwlchan.net/2026/byte-order-marks/
5•surprisetalk•5d ago•2 comments

Log is non-monotonic in PHP and Lua

https://purplesyringa.moe/blog/log-is-non-monotonic-in-php-and-lua/
51•ibobev•5d ago•28 comments

60 Years Ago, a Submerged Submarine Circled the Globe for the First Time (2020)

https://www.popularmechanics.com/military/weapons/a32009109/operation-sandblast-sumbarine-circumn...
13•baud147258•1d ago•5 comments

Multiple Mouse Cursors in Wayland

https://blinry.org/multi-seat-wayland/
117•marvinborner•7h ago•79 comments

Beyond Greece and Rome

https://aeon.co/essays/uncovering-a-global-ancient-history-beyond-greece-and-rome
30•diodorus•1d ago•25 comments

The iPhone Upgrade Program is being replaced by Apple Upgrade

https://www.apple.com/shop/iphone/iphone-upgrade-program
174•lkurtz•15h ago•322 comments

Zig's Incremental Compilation Internals

https://mlugg.co.uk/posts/incremental-compilation-internals/
236•garyhtou•17h ago•162 comments

Una GPS smart watch – Repairable, USB-C charging, developer-friendly

https://unawatch.com/
203•pimterry•17h ago•127 comments

Interview with Boris Cherny [video]

https://www.youtube.com/watch?v=qyPCVqFUyDo
53•knighthacker•1d ago•62 comments

Now is the time to give LLMs access to the ACM digital library

https://cacm.acm.org/opinion/now-is-the-time-to-give-llms-access-to-the-acm-digital-library/
154•rbanffy•17h ago•124 comments

Discovering Cryptographic Weaknesses with Claude

https://www.anthropic.com/research/discovering-cryptographic-weaknesses
215•gslin•15h ago•154 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.