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Replacing JavaScript with Just HTML

https://www.htmhell.dev/adventcalendar/2025/27/
98•soheilpro•1h ago•20 comments

How a father’s choices may be packaged and passed down in sperm RNA

https://www.quantamagazine.org/how-dads-fitness-may-be-packaged-and-passed-down-in-sperm-rna-2025...
30•vismit2000•1h ago•3 comments

How we lost communication to entertainment

https://ploum.net/2025-12-15-communication-entertainment.html
299•8organicbits•6h ago•155 comments

Functional programming and reliability: ADTs, safety, critical infrastructure

https://blog.rastrian.dev/post/why-reliability-demands-functional-programming-adts-safety-and-cri...
52•rastrian•2h ago•26 comments

Floor796

https://floor796.com/
581•krtkush•13h ago•76 comments

Project Vend: Phase Two

https://www.anthropic.com/research/project-vend-2
67•kubami•5d ago•23 comments

Text rendering hates you

https://faultlore.com/blah/text-hates-you/
91•andsoitis•6d ago•29 comments

Gpg.fail

https://gpg.fail
290•todsacerdoti•9h ago•151 comments

Rainbow Six Siege hacked as players get billions of credits and random bans

https://www.shanethegamer.com/esports-news/rainbow-six-siege-hacked-global-server-outage/
104•erhuve•7h ago•31 comments

Show HN: Viral Potential Predictor

https://hn-ph.vercel.app
27•salebanolow•2h ago•9 comments

Windows 2 for the Apricot PC/Xi

https://www.ninakalinina.com/notes/win2apri/
103•todsacerdoti•8h ago•24 comments

immer – a library of persistent and immutable data structures written in C++

https://github.com/arximboldi/immer
23•smartmic•6d ago•6 comments

Clock synchronization is a nightmare

https://arpitbhayani.me/blogs/clock-sync-nightmare/
130•grep_it•4d ago•84 comments

Nvidia's $20B antitrust loophole

https://ossa-ma.github.io/blog/groq
352•ossa-ma•9h ago•119 comments

Show HN: Ez FFmpeg – Video editing in plain English

http://npmjs.com/package/ezff
343•josharsh•18h ago•166 comments

Janet Jackson had the power to crash laptop computers (2022)

https://devblogs.microsoft.com/oldnewthing/20220816-00/?p=106994
234•montalbano•9h ago•95 comments

Rust the Process

https://www.amalbansode.com/writing/2025-12-24-rust-the-process/
35•quadrophenia•3d ago•5 comments

7- and 14-segment fonts "DSEG"

https://www.keshikan.net/fonts.html
14•anigbrowl•4h ago•1 comments

Toll roads are spreading in America

https://www.economist.com/united-states/2025/12/18/toll-roads-are-spreading-in-america
136•smurda•8h ago•400 comments

Liberating Bluetooth on the ESP32

https://exquisite.tube/w/mEzF442Q4hUXnhQ8HmfZuq
12•todsacerdoti•4h ago•0 comments

OrangePi 6 Plus Review

https://boilingsteam.com/orange-pi-6-plus-review/
141•ekianjo•14h ago•122 comments

Ask HN: Resources to get better at outbound sales?

162•sieep•6d ago•40 comments

Pfizer ended up passing on my GLP-1 work back in the early '90s (2024)

https://www.statnews.com/2024/09/09/glp-1-history-pfizer-john-baxter-jeffrey-flier-calbio-metabio/
69•rajlego•5h ago•27 comments

Pantograph: Building a preschool for robots

https://pantograph.com/blog/building-a-preschool-for-robots.html
37•agajews•4d ago•8 comments

Say No to Palantir in the NHS

https://notopalantir.goodlawproject.org/email-to-target/stop-palantir-in-the-nhs/
91•_____k•5h ago•12 comments

Mruby: Ruby for Embedded Systems

https://github.com/mruby/mruby
127•nateb2022•5d ago•32 comments

Richard Stallman at the First Hackers Conference in 1984 [video]

https://www.youtube.com/watch?v=Hf2pfzzWPYE
103•schmuckonwheels•5h ago•14 comments

Show HN: Mysti – Claude, Codex, and Gemini debate your code, then synthesize

https://github.com/DeepMyst/Mysti
173•bahaAbunojaim•4d ago•141 comments

Splice a Fibre

https://react-networks-lib.rackout.net/fibre
89•matt-p•14h ago•41 comments

Exe.dev

https://exe.dev/
414•achairapart•1d ago•269 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•7mo ago

Comments

stevoski•7mo 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•7mo 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•7mo 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_•7mo ago
Spotbugs or checkstyle etc... would catch these. What does AI add here?
xyst•7mo 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•7mo 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•7mo 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•7mo 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•7mo 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•7mo ago
stupid af
Traubenfuchs•7mo 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•7mo 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•7mo ago
Can the QA team? How does the dev/staging environment help writing less buggy code?
rad_gruchalski•7mo ago
But can you leetcode heh.
TYMorningCoffee•7mo 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.