Iván Krȳlov

Senior Software Engineer at Apple. JVM expert. Views are my own.

[Iván Krȳlov @JohnWings]

https://t.co/7Y4bqMMeNy Can't keep that daddy's old java around forever.

[Iván Krȳlov @JohnWings]

Saving to watch later

[Nikita Skvortsov @_taramparam]

Do you want to know what is happening behind the scenes when @intellijidea opens your @ASFMavenProject or @gradle based project? Some optimizations and flows? Check this blog post: https://t.co/NNbIeo9yuj

[Nikita Skvortsov @_taramparam]

Do you want to know what is happening behind the scenes when @intellijidea opens your @ASFMavenProject or @gradle based project? Some optimizations and flows? Check this blog post: https://t.co/NNbIeo9yuj

[Iván Krȳlov @JohnWings]

@_JamesWard You can it by reading the property in the code (this example contains a default value).
`local myenvironment = read?("prop:environment") ?? "develop"`

[Iván Krȳlov @JohnWings]

Hi,
@_JamesWard! Great talk with Ryan on PKL at Devoxx. A minor comment on the discussion at https://t.co/SYWY8fJRfR : instead of env variables you can use properties passed to pickle command, e.g. `pkl eval -p env=prod` and generate output based on the value of `env`.

[Iván Krȳlov @JohnWings]

@bellsoftware @dchuyko Thanks a lot Dmitry! Well done!

[Iván Krȳlov @JohnWings]

When I look at modern Java, I see `var` everywhere in local variables declarations. May be time to admit, that it is a redundant keyword? Type deduced at the first assignment. May be use `:=` instead of `=` to distinguish with usage of class fields.

[Konrad ‘ktoso’ Malawski 🐟🏴‍☠️🇺🇦 @ktosopl]

Introducing the seamless Java/Swift interop effort!

Offering both:
- generated Swift macro based JNI wrappers
- Project Panama based Swift accessors generated with a jextract-swift tool for high performance use-cases

Early prototype is open source and we’ll share more about our plans and invite folks to collaborate early next week!

https://t.co/CU2QuIjBIq

#ServerSideSwift2024

[Swift Language @SwiftLang]

As part of our vision for Swift to be a widely-used language for a wide variety of use cases and platforms, today at @SwiftServerConf we open sourced some early work on Swift/Java interoperability: https://t.co/9LIrLfsjV2. Excited to partner with others to expand this. @java

[Iván Krȳlov @JohnWings]

@rkennke See you there!

[EgorBo @EgorBo]

TL;DR: A tiny arm64 peephole optimization (merging two `ldr` into one `ldp`) makes List.Add 3x slower *ONLY* on Apple M* chips 🙂

[Iván Krȳlov @JohnWings]

@hansolo_ @GeertjanW Fair enough. Cheers!

[Iván Krȳlov @JohnWings]

@hansolo_ @GeertjanW Love the adoption of Swift though.

[Iván Krȳlov @JohnWings]

@hansolo_ @GeertjanW No sources? No license? Why is it on GitHub then?

[Iván Krȳlov @JohnWings]

@parttimen3rd @SweetSapMachine Hello @volker_simonis !

[geecon @GeeCON]

Nitsan Wakart @nitsanw, a key contributor to JCTools - Java Concurrency Tools for the JVM, is well-versed in memory management. Join us at #GeeCON as he explores the fundamentals of JVM memory usage.
https://t.co/PdSu2urRSe

[Iván Krȳlov @JohnWings]

@Java_Champions @jbaruch Congrats!

[Iván Krȳlov @JohnWings]

"Assume that I can". That is a very powerful message that I need to remind myself of. Never give up, keep believing in my son.

[Richard Baker 𓅪 @RichardBaker15]

This is absolutely brilliant @coordown #changingthenarrative #perception #downsyndrome

[JetBrains @jetbrains]

Important: Apple has released macOS Sonoma 14.4.1, which addresses the issue with JVM applications crashing unexpectedly (https://t.co/IA9fvdRyTA). We have tested it with our IDEs and are no longer observing the undesired behavior. If you are on macOS Sonoma 14.4, we recommend upgrading to 14.4.1 if possible.

[Iván Krȳlov @JohnWings]

Keep your tools sharp!

[Markus Eisele @myfear]

JDK Mission Control 9.0.0 Released! – @Hirt https://t.co/VA2Eq8V6IX
#Java #jmc