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0xc1a35

@cl4es.bsky.social
142 followers 76 following 48 posts

Work: OpenJDK/Java performance; github.com/cl4es

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0xc1a35 @cl4es.bsky.social · 17/07/2026
Woke! (positivt)
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0xc1a35 @cl4es.bsky.social · 15/07/2026
Nejnej, hon hatar bara de bögar och flator som är med i RFSL
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0xc1a35 @cl4es.bsky.social · 28/06/2026
Varje arg lapp är ett side quest för den hugade
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0xc1a35 @cl4es.bsky.social · 23/06/2026
Va i... 250 000 extra om man ska ha utskänkningstillstånd för en publik på 1000 pers!? Blir lite väl många öl per person för att det ska gå runt..
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0xc1a35 @cl4es.bsky.social · 22/06/2026
🎆$260B🎇
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0xc1a35 @cl4es.bsky.social · 17/06/2026
Bor i hus, har odlingar och blir bara glad när jag ser rådjur vila under äppelträden. Visst, pionerna blir sällan långlivade men äh, c'est la vie.
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0xc1a35 @cl4es.bsky.social · 18/05/2026
Så är det slutligen bevisat att alla med såna där gymkroppar är utomjordingar!
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0xc1a35 @cl4es.bsky.social · 23/04/2026
Från nästa säsong av Bäst i test?
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0xc1a35 @cl4es.bsky.social · 21/04/2026
Andras webbplatser är satans struktur
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0xc1a35 @cl4es.bsky.social · 08/04/2026
Arbete ger frihet
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0xc1a35 @cl4es.bsky.social · 03/04/2026
Not affected by layoffs (yet), but taking some previously planned parental leave.
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0xc1a35 @cl4es.bsky.social · 03/01/2026
Big stretch if true!
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Reposted by 0xc1a35
David D. Levine @daviddlevine.com · 12/04/2025
LLMs hallucinating nonexistent software packages with plausible names leads to a new malware vulnerability: "slopsquatting."
theregister.com
LLMs can't stop making up software dependencies and sabotaging everything
: Hallucinated package names fuel 'slopsquatting'
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0xc1a35 @cl4es.bsky.social · 26/12/2025
Pyromaniacs? We have special jail for pyromaniacs. You come into Gävle and burn the Yule Goat? Right to jail. Right away.
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0xc1a35 @cl4es.bsky.social · 25/12/2025
Perhaps throwing the last guy in jail for 6 months + 109 000 SEK in reparations raised the stakes a bit too far..?
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0xc1a35 @cl4es.bsky.social · 20/10/2025
@pminborg.bsky.social and I wrote a bit about some of the many performance improvements in JDK 25: inside.java/2025/10/20/j... tl;dr: upgrade to JDK 25 and add -XX:+UseCompactObjectHeaders
inside.java
Performance Improvements in JDK 25
Java is constantly evolving with ever increasing performance. JDK 25 comes with significant performance improvements compared to previous versions including scoped values, improved GCs, lots of compil...
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0xc1a35 @cl4es.bsky.social · 21/08/2025
Okidoki!
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0xc1a35 @cl4es.bsky.social · 09/07/2025
-- femte frikändes
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0xc1a35 @cl4es.bsky.social · 17/05/2025
Trådar som aldrig tar slut - kan de vara dödsfällor?
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0xc1a35 @cl4es.bsky.social · 23/04/2025
Vet inte vilket som vore värst, faktiskt
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0xc1a35 @cl4es.bsky.social · 08/04/2025
"Agnes slickar sina barn. Overkligt!"
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0xc1a35 @cl4es.bsky.social · 27/03/2025
OH: "WhiskeyLeaks"
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0xc1a35 @cl4es.bsky.social · 27/03/2025
Going to be doing some on-and-off between work and parental leave in the coming months. A good time to pick up a book or two and do some gardening, maybe. Or I'll just be trying to find time for naps. We'll see!
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0xc1a35 @cl4es.bsky.social · 21/03/2025
*shorting intensifies*
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0xc1a35 @cl4es.bsky.social · 14/02/2025
Right there on the "Topic of Cancer"
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0xc1a35 @cl4es.bsky.social · 14/02/2025
?
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0xc1a35 @cl4es.bsky.social · 12/02/2025
Which JDK are you baselined on - 17? Maybe ask in leyden-dev anyway. The developers responsible for dynamic CDS are all there and might now if there's any route to enhance this older feature without interfering with the leyden/AOTCache work
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0xc1a35 @cl4es.bsky.social · 12/02/2025
You mean the AOTCache...? :) openjdk.org/jeps/483 Are these questions about the design/implementation/bugs aimed at the developers? leyden-dev OpenJDK mailing list might be a good place. Maybe @shipilev.bsky.social has a better perspective as a non-Oracle contributor?
openjdk.org
JEP 483: Ahead-of-Time Class Loading & Linking
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Reposted by 0xc1a35
Darth Putin @darthputinkgb.bsky.social · 06/01/2025
Have you noticed he never says anything bad about actual tyrannical governments?
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0xc1a35 @cl4es.bsky.social · 06/01/2025
media.tenor.com
a group of soldiers are standing in a row wearing helmets and armor .
ALT: a group of soldiers are standing in a row wearing helmets and armor .
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0xc1a35 @cl4es.bsky.social · 06/01/2025
Bra skrivet!
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0xc1a35 @cl4es.bsky.social · 03/01/2025
Having a surprisingly good time playing Satisfactory. Could probably swoop around and adding nice little catwalks to my factory for days. No progress. Only vibes.
Screenshot of a small factory, mining rigs and alien structures in the distance.
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0xc1a35 @cl4es.bsky.social · 17/12/2024
Try mvn clean
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0xc1a35 @cl4es.bsky.social · 09/12/2024
Midsommarregn, Höstgryning, osv..
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0xc1a35 @cl4es.bsky.social · 01/12/2024
This doesn't test with compressed object heders, right? I actually haven't checked if these features play well together.
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0xc1a35 @cl4es.bsky.social · 24/11/2024
One of us! One of us!
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0xc1a35 @cl4es.bsky.social · 24/11/2024
It's a bit sad I know at least a couple that could fit this description.
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0xc1a35 @cl4es.bsky.social · 24/11/2024
"This is for Toto..."
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0xc1a35 @cl4es.bsky.social · 23/11/2024
Right in front of my mvn clean install?
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0xc1a35 @cl4es.bsky.social · 23/11/2024
I tried to post something not related to work. Oh well! 😅
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0xc1a35 @cl4es.bsky.social · 23/11/2024
Getting there..
Cappuccino with imperfect latte art, yet good enough for the poster to feel a faint sense of pride and accomplishment.

Wait, an alt text can be 2000 characters? Wow.. so many possibilities! 😇
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0xc1a35 @cl4es.bsky.social · 20/11/2024
Hello!
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0xc1a35 @cl4es.bsky.social · 19/11/2024
A bit surprised this was changed (in premain), though I guess in high-trust environments ARM=0 might be a reasonable tuning option.
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0xc1a35 @cl4es.bsky.social · 19/11/2024
Without these CDS improvements coming in late we'd actually be looking at a small regression in JDK 24 - happy to see (some of) our trends turning green in the latest build! Does "other whistles" include your parallel relocation PR?
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0xc1a35 @cl4es.bsky.social · 18/11/2024
If you follow me I might post whenever I deliver nerdy talks such as www.youtube.com/watch?v=tgX3...
youtube.com
Rethinking Java String Concatenation #JVMLS
YouTube video by Java
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0xc1a35 @cl4es.bsky.social · 18/11/2024
Hi, I'm Claes. I grew tired of that other place, too. I work mostly on the OpenJDK (github.com/cl4es). Sometimes I blog a bit about that (cl4es.github.io), though it's been a quiet lately because reasons. Here to look for inspiration and engage with others.
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0xc1a35 @cl4es.bsky.social · 16/11/2024
Håller med, och använde ordet i neutral mening. Filterbubblor har vi allihopa och kan vara neutralt/positivt (fokusera flödet på utvalda intressen, minska brus/bots/troll) och negativt (ekokammare etc).
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0xc1a35 @cl4es.bsky.social · 16/11/2024
Så är det. Men man *kan* blocka och till och med dela med sig av sina mute-/blocklistor om man så vill. Sen väljer man själv om man vill bo i en filterbubbla eller bara blocka ut de värsta trollen.
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0xc1a35 @cl4es.bsky.social · 16/11/2024
Folk som gör aktiva val är mer aktiva bloggläsare? Stort! (Skaffade konto här för ett tag sedan men tog bort X-kontot först igår, så kan ha varit del av båda statistikerna ett tag)
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0xc1a35 @cl4es.bsky.social · 15/11/2024
Phew, good thing I'm not starter pack material!
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