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Java 21 makes me like Java again

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Re: Java 21 makes me like Java again

#531

Post by brightball »

kaba0 wrote: post #388
brightball wrote: post #320

Earlier quoted context omitted.

Java 21 has me anticipating the next JRuby release because of Virtual Threads. Charles Nutter gave a talk about JRuby in August where he showed a demo of the impact on Ruby fibers and it’s pretty significant. There’s a lot that I really like about the JVM and it’s tooling, I just don’t like writing Java code anymore. JRuby kinda gives the best of both worlds. Here’s the talk. Virtual thread demo is around the 45 minu…

How does jruby relate to truffleruby?

He actually talks about that during the video as well. Short answer is “it depends”.

IIRC Truffle is dramatically faster in some benchmarks but slower in others. And there are some usability aspects of the language that are negatively impacted.

Re: Java 21 makes me like Java again

#533

Post by brightball »

ksec wrote: post #376
brightball wrote: post #320

Earlier quoted context omitted.

Java 21 has me anticipating the next JRuby release because of Virtual Threads. Charles Nutter gave a talk about JRuby in August where he showed a demo of the impact on Ruby fibers and it’s pretty significant. There’s a lot that I really like about the JVM and it’s tooling, I just don’t like writing Java code anymore. JRuby kinda gives the best of both worlds. Here’s the talk. Virtual thread demo is around the 45 minu…

Wondering if anyone is using JRuby on Rails in production.

He listed off a bunch during the talk.

Re: Java 21 makes me like Java again

#534

Post by krzyk »

northern-lights wrote: post #31

The biggest feature in Java 21 is the release of Virtual Threads: https://openjdk.org/jeps/444 For some reason, this is missing from the article. If there was any feature that would sway existing Golang developers to switch to Java, it would be this. It would perhaps also convince the haters of the reactive-style concurrency patterns.

It depends what one needs. VT are nice, but I don't use threads much, so it is a cool feature I won't use.

For me bigger feature is pattern matching for switch and records.

Re: Java 21 makes me like Java again

#535

Post by lakomen »

pjmlp wrote: post #424
mariusor wrote: post #384

Earlier quoted context omitted.

I'm not sure if your question is rhetorical, but Go doesn't have the concept of compiled library that you can link to another binary. So in Go you make available the library's source code, and the end-user will download it at build time, or vendor it in the source tree.

Which is a non starter for businesses that don't ship source code.

https://pkg.go.dev/plugin

Re: Java 21 makes me like Java again

#536

Post by ahoka »

neonsunset wrote: post #224

Sad this gets to front page while a blog post which documents that .NET 8 has 200 A4 pages worth of performance improvements gets absolutely ignored. C# keeps being the language people are looking for but don't know about.

Both are horrible languages and while Java libraries are abundant, most are horribly over-engineered, archaic stuff from the 2000s, where everything was about forcing OOP on every problem. Log4j executed code from an ldap server. Insane.

Re: Java 21 makes me like Java again

#537

Post by eduction »

waffletower wrote: post #311
northern-lights wrote: post #31

The biggest feature in Java 21 is the release of Virtual Threads: https://openjdk.org/jeps/444 For some reason, this is missing from the article. If there was any feature that would sway existing Golang developers to switch to Java, it would be this. It would perhaps also convince the haters of the reactive-style concurrency patterns.

From my vantage as a Clojurist, virtual threads on the JVM seem to have very minimal benefits. All I can think of at the moment, is that we could have thread-safe JDBC connectors: https://medium.com/oracledevs/introduction-to-oracle-jdbc-21...

I mean couldn’t you have the performance equivalent of core.async’s go except with the ability to take across cross function boundaries? That seems pretty huge.

Re: Java 21 makes me like Java again

#538

Post by lakomen »

The biggest problem with Java is... the walled garden, the snob society, the elitist, exclusive culture.

Go isn't like that, or at least wasn't when G+ was still around.

Nowadays I don't get in touch much with people, but when I create issues Go people are usually not as unfriendly as Java/JVM people.

Re: Java 21 makes me like Java again

#540

Post by bsdnoob »

lakomen wrote: post #538

The biggest problem with Java is... the walled garden, the snob society, the elitist, exclusive culture. Go isn't like that, or at least wasn't when G+ was still around. Nowadays I don't get in touch much with people, but when I create issues Go people are usually not as unfriendly as Java/JVM people.

Imo problem with Java is... JVM because it's quite a resource intensive application itself, memory usage is orders of time magnitude worse than most of the language I've used.
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