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Plug-in solar is coming. Plug-in batteries should follow

https://www.regen.co.uk/insights/plug-in-solar-is-coming-plug-in-batteries-should-follow
54•thelastgallon•1h ago•30 comments

Go 1.27 Interactive Tour

https://victoriametrics.com/blog/go-1-27/index.html
84•Hixon10•2h ago•21 comments

MkLinux and the pimped-out Apple Workgroup Server 9150

http://oldvcr.blogspot.com/2026/08/mklinux-and-pimped-out-apple-workgroup.html
19•goldenskye•1h ago•1 comments

Seedance 2.5

https://seed.bytedance.com/en/blog/one-take-creation-flexible-referencing-introducing-seedance-2-5
225•njaremko•7h ago•110 comments

Diátaxis

https://diataxis.fr/
247•ryanseys•7h ago•33 comments

ASRock BC-250: Building the Budget Steam Machine

https://plug-world.com/posts/2026/asrock-bc250-the-budget-steam-machine/
31•plug_world•2h ago•7 comments

Deep-sea vehicles spot 'alien' sharks deep beneath the waves in the Pacific

https://www.science.org/content/article/deep-sea-vehicles-spot-alien-sharks-deep-beneath-waves-pa...
14•pkaeding•1h ago•2 comments

Show HN: I'm a 15 Year Old Wannabe Engineer, This Is a Cycloidal Gearbox I Built

https://github.com/tom-ilan/cycloidal_gearbox
49•tomilan•2h ago•14 comments

RFC 10015: Deprecating Obsolete Key Exchange Methods in TLS 1.2 and DTLS 1.2

https://www.rfc-editor.org/rfc/rfc10015.html
43•Jimmc414•4h ago•5 comments

AI financial advice is surprisingly good, especially if you ask right questions

https://mitsloan.mit.edu/ideas-made-to-matter/ai-financial-advice-surprisingly-good-especially-if...
220•foxtrot8672•5h ago•195 comments

Unraveling the mysteries of habit formation

https://www.kyoto-u.ac.jp/en/research-news/2026-07-28
48•hhs•5h ago•18 comments

Postmortem for Kernel Soundness Bug #14576

https://leodemoura.github.io/blog/2026-8-1-postmortem-for-kernel-soundness-bug-14576/
128•juhopitk•9h ago•45 comments

When random.bytes() runs but doesn't work

https://insider.btcpp.dev/p/when-randombytes-runs-but-doesnt
8•Funes-•2h ago•0 comments

Show HN: CostPerPrompt – Live AI API pricing and real-workload cost calculators

https://costperprompt.com/
6•ahmed_hassan7•2h ago•2 comments

But can your calculator run Linux?

https://raymii.org/s/articles/But_can_your_calculator_run_Linux.html
76•jandeboevrie•8h ago•6 comments

Four Time Scales for Technology Development and Deployment

https://rodneybrooks.com/four-time-scales-for-technology-development-and-deployment/
14•jeffreyrogers•1h ago•1 comments

Morph (YC S23) Is Hiring Member of Technical Staff

https://www.ycombinator.com/companies/morph/jobs/0Z8vI3K-member-of-technical-staff
1•bhaktatejas922•5h ago

The Art of 64-bit Assembly

https://nostarch.com/art-64-bit-assembly-v2
209•0x54MUR41•14h ago•90 comments

China begins producing advanced chipmaking deep-ultraviolet lithography machines

https://www.reuters.com/world/china/china-starts-production-home-grown-immersion-duv-chipmaking-t...
52•ck2•2d ago•38 comments

How Google helped destroy adoption of RSS feeds (2023)

https://openrss.org/blog/how-google-helped-destroy-adoption-of-rss-feeds
456•pudgywalsh•10h ago•159 comments

We accidentally built an LLVM compiler for Jax

https://iza.ac/posts/2026/07/accidental-llvm-compiler-for-jax/
22•infinitewalk•2d ago•8 comments

Nyctography: A substituton cypher by Lewis Carroll

https://en.wikipedia.org/wiki/Nyctography
60•nanna•4d ago•8 comments

NetBSD 11.0

https://blog.netbsd.org/tnf/entry/netbsd_11_0_released
237•jaypatelani•10h ago•107 comments

Kenji/Serious Eats – 30-Min Pressure Cooker Pho Ga

https://www.seriouseats.com/30-minute-pressure-cooker-pho-ga-recipe
116•stasomatic•12h ago•66 comments

Explorative modeling: Train on the best of K guesses

https://alexiglad.github.io/blog/2026/explorative_modeling/
87•DSemba•13h ago•24 comments

The Theater of Sport: Bill Buford Revisits Among the Thugs

https://www.theparisreview.org/blog/2026/07/29/the-theater-of-sport-bill-buford-revisits-among-th...
9•Thevet•3d ago•1 comments

Atom is better than RSS, in ways that matter

https://chrismorgan.info/atom%3Erss
26•frizlab•6h ago•3 comments

CISA Alert: Water Sector PLC Targeting

https://censys.com/blog/cisa-alert-water-tower-plc-targeting/
85•speckx•9h ago•60 comments

Glyphs 4 – the leading Mac font editor

https://glyphsapp.com
67•microflash•4d ago•10 comments

Linux on ESP32

https://github.com/GrieferPig/esp32-s31-linux
106•boveyking•4d ago•37 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.