Jakob Jenkov @jjenkov Twitter profile

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Jakob Jenkov

@jjenkov

7 months

Just finished reading Clean Code. My immediate impression is that it is not one of the most useful books on software design I have read. The problem I have with books like Refactoring, Design Patterns and Clean Code is, that they tend to be a list of solutions for you to…

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Jakob Jenkov

@jjenkov

1 year

After 23 years of #Java development - I am only just discovering :-D

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Jakob Jenkov

@jjenkov

2 years

Thank you very much, everyone !!! :-) ... to the Java Champions for nominating me, and to all of you who have read my Java tutorials enough to even make this a possibility :-) Thank you!!

Java Champions

@Java_Champions

2 years

Congratulations to new #Java Champion @jjenkov

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Jakob Jenkov

@jjenkov

5 years

Just realized I have been blogging about Java, web and related technologies for 13 years now... since 2006 ! ... more than 950 articles has come out of that. I hope I have 13 more years of serving the developer community in me ;-) #Java

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Jakob Jenkov

@jjenkov

4 years

This saturday my developer tutorial website crossed 100.000.000 page views in its life time! I guess I can call myself a blogger now ;-) Thanks to everyone who've visited my website over the years and helped reach the 100 million page view milestone :-)

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Jakob Jenkov

@jjenkov

1 year

What are the real benefits of Functional Programming? Can anyone point me to an article explaining - not just the techniques - but an actual explanation as to why FP should be *better* than OOP? I am genuinely curious!

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Jakob Jenkov

@jjenkov

2 years

If you are learning Java Concurrency at the moment, I have a 22 video playlist on the topic - here: #Java

Java Concurrency and Multithreading

The term Java Concurrency is commonly used to refer to topics related to Java multithreading, concurrency, synchronization, volatile variables, the Java memo...

www.youtube.com

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Jakob Jenkov

@jjenkov

1 year

My Java Concurrency video playlist is now up to 23 videos :-) #Java

Java Concurrency and Multithreading

The term Java Concurrency is commonly used to refer to topics related to Java multithreading, concurrency, synchronization, volatile variables, the Java memo...

www.youtube.com

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Jakob Jenkov

@jjenkov

1 year

My Java Concurrency video playlist is now up to 24 videos :-) #Java

Java Concurrency and Multithreading

The term Java Concurrency is commonly used to refer to topics related to Java multithreading, concurrency, synchronization, volatile variables, the Java memo...

www.youtube.com

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Jakob Jenkov

@jjenkov

1 year

Java 20 released today - on my birthday! Yaay! :-D #Java

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Jakob Jenkov

@jjenkov

1 year

I have just added a Java Virtual Thread example to my Java Examples GitHub repository :-) #Java

GitHub - jjenkov/java-examples: A set of Java examples - of Java SE features (core Java) and...

A set of Java examples - of Java SE features (core Java) and techniques. - jjenkov/java-examples

github.com

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Jakob Jenkov

@jjenkov

1 year

OpenJDK + GraalVM + TornadoVM + Maven + Jetbrains + Eclipse + Android + JavaFX + Swing + Skija + etc. ...+ new Java releases every 6 months + improving performance almost every release => Pretty solid ecosystem :-)

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Jakob Jenkov

@jjenkov

3 years

The reboot of Java from Java 9 and forward is one of the most impressive technology reboots I have witnessed in my 20 year as a developer. Especially the Java VM is making leaps of progress - within GC and by removing dead wood. With every new Java release, #Java looks better.

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Jakob Jenkov

@jjenkov

1 year

My #Java single-threaded concurrency solution is currently able to switch between tasks around 75-80 million times per second - on my 6 year old laptop. I guess that's enough for a lot of use cases. I still need to tweak the design a bit + add features, so the number may change.

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Jakob Jenkov

@jjenkov

1 year

My Java Concurrency video playlist is now up to 25 videos :-) #Java #JavaConcurrency #JavaMultithreading

Java Concurrency and Multithreading

The term Java Concurrency is commonly used to refer to topics related to Java multithreading, concurrency, synchronization, volatile variables, the Java memo...

www.youtube.com

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Jakob Jenkov

@jjenkov

5 months

Java is not as fast as C/C++/D/Rust - but if you need performance, you can get quite a lot of performance out of Java these days! Learning how to program for performance will make a bigger difference than the language you choose! #Java

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Jakob Jenkov

@jjenkov

2 years

The Java Streams API is not a stream processing API - but a batch processing API. A true streaming API could not have "terminal operations" - as a true stream has no "last element". And - that is just one of the things we need to talk about regarding stream processing. #Java

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Jakob Jenkov

@jjenkov

6 months

GPU programming is coming to Java ... 😊 #Java #GPU

Java and GPU … are we nearly there yet? #JVMLS

This sessions discusses recent (and proposed) JDK features that (will) offer new Java GPGPU (general-purpose GPU) collaboration opportunities.Presented by Ga...

www.youtube.com

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Jakob Jenkov

@jjenkov

7 months

Here are my notes about the SOLID design principles so far. I will probably be adding some comments to them over time, as I learn more about software design - but here is the first version: #SoftwareDesign #SoftwareDevelopment #SoftwareEngineering

The SOLID Principles

The SOLID principles are 5 principles that you can use to evaluate the quality of your software design.

jenkov.com

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Jakob Jenkov

@jjenkov

9 months

10+ years ago I decided to design my own dependency injection container (Butterfly Container) in Java. When it was finished it was around a 100 KB JAR file - and thus had the smallest code base of the available dependency injection containers at the time. Google Guice was around…

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Jakob Jenkov

@jjenkov

2 years

With the 6 month release cadence #Java has really moved quite far the last 3 years (6 releases). Especially the GC and performance has been improved, and we have had some improvements in the language syntax itself (pattern matching etc.). Seems #Java is making a comeback :-)

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Jakob Jenkov

@jjenkov

3 years

Hi everyone, I am back! Jakob Jenkov - the developer. Not the PS5 spam bot.

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Jakob Jenkov

@jjenkov

11 months

Excellent article about how CPU caches work - which can be useful to know to better understand the effect of the Java "volatile" keyword. This article also points out some errors in my own understanding of caches (it references one of my tutorials). I thought I had corrected that…

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Jakob Jenkov

@jjenkov

9 months

The more code I have read, the less sensitive I have become to "messy code". There can be several legit reasons why that code was written the way it was. Deadlines. Experience level. Different standards. Fewer features available at the time etc. In most cases - I will eventually…

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Jakob Jenkov

@jjenkov

7 months

Currently working with a Java app that seems to have some garbage collection challenges from time to time - so I am studying how garbage collection works in more detail. This article by Frank Delporte ( @frankdelporte ) about Java garbage collection techniques was quite…

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Jakob Jenkov

@jjenkov

2 years

If you are playing with JavaFX - I have 76 JavaFX examples in a public GitHub repository here: #Java #JavaFX

GitHub - jjenkov/javafx-examples: A large collection of JavaFX examples demonstrating basic +...

A large collection of JavaFX examples demonstrating basic + advanced features of JavaFX. - GitHub - jjenkov/javafx-examples: A large collection of JavaFX examples demonstrating basic + advanced fe...

github.com

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Jakob Jenkov

@jjenkov

11 months

GraalVM (Java VM) just made a new distribution - giving several of the features for free that were before commercial features. Meaning - you can now use these GraalVM features in production - for free! Pretty aweseome! #Java #graalvm

A New GraalVM Release and New Free License!

Introducing a new distribution and new features in GraalVM for JDK 17 and 20

medium.com

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Jakob Jenkov

@jjenkov

4 years

I will return to write more about JavaFX soon... any JavaFX fans out there?? ;-) I also have a small "art project" in JavaFX that I am working on... maybe it'll one day be polished enough to showcase :-D #JavaFX

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Jakob Jenkov

@jjenkov

1 year

AWS Lambda examples with popular #Java frameworks - shared by @MarkSailes3 - Serverless solution architect + Java enthusiast from AWS UK (thank you!!)

GitHub - aws-samples/serverless-java-frameworks-samples

Contribute to aws-samples/serverless-java-frameworks-samples development by creating an account on GitHub.

github.com

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Jakob Jenkov

@jjenkov

10 months

Design patterns are good - but what is better is to understand the design thinking that lead to the design patterns. Understand that, and you won't ned to memorize all the individual design patterns. The patterns will just emerge naturally in your code as you apply the design…

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Jakob Jenkov

@jjenkov

2 years

Do you also program "in your head" while walking around doing other things? ... or like when you are working out, or on a bike trip, or commuting etc?... or is that just me being "a bit off" :-D

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Jakob Jenkov

@jjenkov

2 years

I am working on a new video for my Java Concurrency playlist / Java Concurrency tutorial series. #Java

Java Concurrency and Multithreading

The term Java Concurrency is commonly used to refer to topics related to Java multithreading, concurrency, synchronization, volatile variables, the Java memo...

www.youtube.com

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Jakob Jenkov

@jjenkov

1 year

It's 2023 ... time to get off #Java 1.8 - if you are still stuck there 😉 So much good stuff awaits you in the newer versions 😊

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Jakob Jenkov

@jjenkov

3 years

After more than 20 years of "professional" programming, and 34 years of programming in total - I feel like writing down my experiences - what I have learned - more than just write about the next Java API... yes, fewer people will be interested, but my interest will be higher :-D

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Jakob Jenkov

@jjenkov

3 years

I am currently learning about GraalVM ! That is a pretty impressive piece of engineering!

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Jakob Jenkov

@jjenkov

2 years

Which of Java's latest or soon coming features are you most excited about? #Java

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Jakob Jenkov

@jjenkov

1 year

Here are my notes on Java Virtual Threads in Java 19 so far. Enough to get you started 😊 More will be added later 😊 #java #java19 #javamultithreading #javaconcurrency

Java Virtual Threads

From Java 19 virtual threads were added to Java. This tutorial explains how to create Java virtual threads, and how they differ from system threads in Java

jenkov.com

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Jakob Jenkov

@jjenkov

2 years

I would like to see #Java as a leading decentralized, high throughput, low latency systems platform. This is a path I am exploring currently. Java's cross platform reach is really helpful here.

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Jakob Jenkov

@jjenkov

2 years

If you are into learning JavaFX, I have a 60+ page tutorial about #JavaFX here: #Java

JavaFX Tutorial

JavaFX is a GUI toolkit for Java which makes it easier to create desktop applications in Java. JavaFX comes with a large set of built-in components too, as well as 2D and 3D graphics support and...

jenkov.com

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Jakob Jenkov

@jjenkov

1 year

JParse is a new, small, fast Java JSON parser with some JSON path query functionality built in - made by @RickHigh Looks pretty good so far :-) Open source, available on GitHub: #Java #json

GitHub - nats-io/jparse: Small, Fast, Compliant JSON parser that uses events parsing and index...

Small, Fast, Compliant JSON parser that uses events parsing and index overlay - nats-io/jparse

github.com

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Jakob Jenkov

@jjenkov

1 year

Java Virtual Threads - video - just published today :-) #Java

Java Virtual Threads

Java Virtual Threads are a new kind of lightweight threads that were added to Java in Java 19. In this video I describe what Java virtual threads are, how v...

www.youtube.com

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Jakob Jenkov

@jjenkov

10 months

I have finished my software design introduction - laying out what I believe to be some of the fundamental concepts of software design. More tutorials with more details will come in the future. There is a textual and video version - here: …

Software Design Introduction

Software design is the process of figuring out what functionality a given software system should implement, and how this implementation should be structured.

jenkov.com

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Jakob Jenkov

@jjenkov

2 years

Java 18 has been released today :-) #Java

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Jakob Jenkov

@jjenkov

3 years

About 3-4 years after designing my first Java NIO based server using non-blocking IO, I realize how it can be made better :-) Sometimes design ideas and improvements take time! :-)

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Jakob Jenkov

@jjenkov

1 year

You can access all of my #Java tutorials from the page below. The left menu lists all bigger topics within Java that I have covered (the left-most menu column) - and to the right of that are listed the tutorials within the selected topic

Java Tutorial

This Java tutorial teaches the core features of the Java language. As the Java language evolves, this tutorial is updated.

jenkov.com

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Jakob Jenkov

@jjenkov

1 year

My Java Virtual Threads video - in case you missed it :-) #Java

Java Virtual Threads

Java Virtual Threads are a new kind of lightweight threads that were added to Java in Java 19. In this video I describe what Java virtual threads are, how v...

www.youtube.com

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Jakob Jenkov

@jjenkov

1 year

"Clean Code, Horrible Performance" ! @cmuratori demonstrates how following a few Clean Code rules can lead to a 20+ times worse performance for some simple calculations. There are no "right" or "wrong" designs. There are only trade-offs. #CleanCode

"Clean" Code, Horrible Performance

Bonus material from the Performance-Aware Programming Series: https://www.computerenhance.com/p/clean-code-horrible-performance

www.youtube.com

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Jakob Jenkov

@jjenkov

5 years

I started working with Java in 1999... 20 years anniversary this year :-D #Java

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Jakob Jenkov

@jjenkov

1 year

The first feature I want to play with in #Java 19 is Virtual Threads! ... code examples and tutorial coming later :-)

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Jakob Jenkov

@jjenkov

2 years

GraalVm is just fascinating! I am looking forward to playing a whole lot more with GraalVM in the future :-) #Java #GraalVM

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Jakob Jenkov

@jjenkov

7 months

I just realized I have been using IntelliJ IDEA since around 2003 - for 20 years now ! ... That must make me a super-fan ! Thank you @jetbrains ! #Java #IDEA

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Jakob Jenkov

@jjenkov

2 years

Working on a video about The 7 Core Principles of Code Performance Optimization. The general techniques I use when working with performance optimization.

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Jakob Jenkov

@jjenkov

1 year

Java ExecutorService tutorial updated to show how to create an ExecutorService that uses virtual threads internally - one per task submitted. #Java #JavaConcurrency #JavaMultithreading

Java ExecutorService

The Java ExecutorService is a built-in thread pool in Java which can be used to execute tasks concurrently. Tasks are submitted to the Java ExecutorService as objects implementing either the Runnable...

jenkov.com

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Jakob Jenkov

@jjenkov

1 year

I will start documenting my #Java single-threaded concurrency model now. The code quality isn't that great - because the code is mostly proof-of-concept level. As I document the design, and close the holes in it, I hope to increase the code quality too.

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Jakob Jenkov

@jjenkov

3 years

The and video platform(s) are some of the coolest and most useful applications of decentralized architecture I have seen in a long time ... probably since early Skype! Way to go @LBRYcom @OdyseeTeam :-)

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Jakob Jenkov

@jjenkov

4 years

I realized I have a lot of JavaFX examples on my HD from my JavaFX tutorials. Should I share them in a GitHub repo? Anyone interested? #JavaFX

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Jakob Jenkov

@jjenkov

9 months

I have updated my Java Generics tutorial - so it is a bit more clear in the introductory explanations :-) #Java

Java Generics Tutorial

Java Generics enable you to specify types for collections in the Java Collection API, as well as create your own classes which can be typed using Generics. This Java Generics tutorial explains how...

jenkov.com

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Jakob Jenkov

@jjenkov

1 year

#Java provides a pretty good mix of cross platform support, cross platform UI support, reasonably high performance, a large toolkit ecosystem and a large community. Still the one of the best overall mixes out there I think, even if other languages might be better in some aspects.

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Jakob Jenkov

@jjenkov

2 years

I have updated my Java tutorial to list what is new in Java 17: #Java #Java17

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Jakob Jenkov

@jjenkov

6 months

LinkedIn experienced good performance gains by upgrading from Java 8 to Java 11 . Imagine if they had upgraded to Java 21 instead... I know, I know - Java 21 wasn't out at the time - but it is now 😉 #Java

LinkedIn’s journey to Java 11

www.linkedin.com

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Jakob Jenkov

@jjenkov

2 years

My #Java tutorials have moved from to - here :-) #Java

Java Tutorial

This Java tutorial teaches the core features of the Java language. As the Java language evolves, this tutorial is updated.

jenkov.com

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Jakob Jenkov

@jjenkov

1 year

Fellow developers! I would like to start a conversation about software / code design. I know we have books such as Refactoring, Design Patterns, Clean Code, Clean Architecture etc. - but I feel something is missing 1/2 #software #softwaredevelopment #sotwaredesign #programming

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Jakob Jenkov

@jjenkov

2 years

#Java 19 seems like it will be focused on performance: Virtual threads, foreign function and memory access API, Vector API (for SIMD and Vector CPU instructions), structured concurrency etc.

JDK 19: The new features in Java 19

Now available for production use, Java 19 features structured concurrency, virtual threads, pattern matching for switch expressions, a vector API, and a Linux/RISC-V port.

www.infoworld.com

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Jakob Jenkov

@jjenkov

4 years

I apologize for updating my basic Java tutorials as much as I have lately. A lot has happened in the world of Java since I wrote the first versions of them, so I found it necessary to go back and update a lot of the more basic Java tutorials! Still do from time to time. #Java

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Jakob Jenkov

@jjenkov

2 years

Project Loom (virtual threads in Java) looks really cool. See the talk below by Ron Pressler. Just one issue with virtual threads is - that they suffer from some of the same architectural limitations as ordinary threads (as far as I understand). #Java

Project Loom: Modern Scalable Concurrency for the Java Platform — Ron...

Concurrent applications, those serving multiple independent application actions simultaneously, are the bread and butter of Java server-side programming. The...

www.youtube.com

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Jakob Jenkov

@jjenkov

4 years

Seems I have reached 10K followers here on Twitter today ! Thanks a lot for the support and confidence, everyone! :-)

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Jakob Jenkov

@jjenkov

1 year

@martinbaez While that is true in theory - the majority of bugs I come across have nothing to do with side effects or mutable state - but are caused by misunderstandings of requirements, or of the underlying language / platform, or simply missed corner cases.

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Jakob Jenkov

@jjenkov

3 years

The biggest obstacle to learning is not that you are "stupid" - but poor learning materials - in my experience. I have often gone from "huh?" to "Aaahhh!!!" just by switching to a different explanation of the same concepts. What is your experience?

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Jakob Jenkov

@jjenkov

1 year

I have updated my Java tutorial intro to list the new features in Java 19 - so the introduction now lists almost all new features in new Java versions going back to #Java 7 ! Do you about them all? #Java

Java Tutorial

This Java tutorial teaches the core features of the Java language. As the Java language evolves, this tutorial is updated.

jenkov.com

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Jakob Jenkov

@jjenkov

5 months

@mprkhrst @AntimetalCloud Why would you have multiple screens inside VR glasses? Why not just one big screen?

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Jakob Jenkov

@jjenkov

10 months

I have corrected my Java volatile tutorial. Some errors had been pointed out to me by several different developers. It was time to fix it. Both text and diagrams have been fixed 😊 #Java #JavaConcurrency #JavaMultithreading

Java Volatile Keyword

The Java volatile keyword guarantees variable visibility across threads, meaning reads and writes are visible across threads.

jenkov.com

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Jakob Jenkov

@jjenkov

2 years

JavaFX is leading the charge towards desktop applications - from web applications - where it makes sense. The idea, that by default all apps should be web apps no longer holds true, in my opinion. #Java #JavaFX

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Jakob Jenkov

@jjenkov

11 months

There was a time, around Java 1.8 or so, where I felt a bit "left behind" working with Java, due to Java's slower evolutionary pace. But the last years of new releases every 6 months has changed that! Java keeps modernizing - and growing in capability as a platform #Java

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Jakob Jenkov

@jjenkov

6 months

My website () now runs on Java 21 😊 I think I will use the "latest LTS" upgrade strategy for my infrastructure too - unless there is something in an in-between Java version that I really want to use - before it makes it into an LTS version. #java

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Jakob Jenkov

@jjenkov

2 years

I've started making notes about "code quality". I realized I have a somewhat different approach than described in books such as Clean Code, so I started making notes to concretize my approach. I will share them when they are more polished :-)

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Jakob Jenkov

@jjenkov

11 months

In Java 21 the basic public static void main class definition gets simpler, to make scripting in Java simpler. Will we actually script code in Java though? We still need a Java VM installed - whereas Linux typically comes with Python preinstalled. What do you think? #java

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Jakob Jenkov

@jjenkov

8 months

My approach to software design - whether I am designing a API, toolkit or language - is to first make sure it can address all the use cases it is intended for. I believe this is often referred to as "expressiveness" - the amount of functionality you can "express" via th API,…

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Jakob Jenkov

@jjenkov

2 years

As developers we constantly have to learn. Learning can sometimes be frustrating. I have published an article titled "Developer Learning Strategies" explaining how I deal with learning - when it's hard. #Developer

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Jakob Jenkov

@jjenkov

2 years

I have updated my Java tutorial to list what is new in Java 16: #Java

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Jakob Jenkov

@jjenkov

2 years

"Your tutorials are too short". "Your tutorials are too long". "Your tutorials have too many unnecessary details". "Your tutorials have too little detail". ... can't please them all - can you? ;-)

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Jakob Jenkov

@jjenkov

2 years

GraalVM + TornadoVM => Amazing! TornadoVM can compile a subset of Java and move it to run on a GPU or FPGA - at runtime! #Java #GraalVM #TornadoVM

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Jakob Jenkov

@jjenkov

1 year

AWS just released "SnapStart" for Java Lambdas - which can reduce the cold start time of a Java lambda by up to 10 x !!! This changes the game for Java lambdas completely! :-) #java #aws #serverless

Reducing Java cold starts on AWS Lambda functions with SnapStart | Amazon Web Services

At AWS re:Invent 2022, AWS announced SnapStart for AWS Lambda functions running on Java Corretto 11. This feature enables customers to achieve up to 10x faster function startup performance for Java...

aws.amazon.com

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Jakob Jenkov

@jjenkov

8 years

@koush @timoreilly Thugs steal from people, terrorists kill civilians, and militias rebel against the government. No skin color involved.

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Jakob Jenkov

@jjenkov

7 months

Anyone interested in how to write tokenizers and parsers etc? I am not an expert in these matters, but I have written a few parsers over the years, so I can probably explain the basics at least 😊 #SoftwareDevelopment #SoftwareEngineering #SoftwareDesign …

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Jakob Jenkov

@jjenkov

2 years

I think we should rename "Best Practices" to "Common Practices" - as I believe this term more precisely reflect the semantics behind the term. Best practices are rarely best for all situations - but might be good for many situations - and are therefore commonly used.

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Jakob Jenkov

@jjenkov

1 year

Wondering what is going on inside the #Java + Java VM development projects? You can follow their posts at :-)

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Jakob Jenkov

@jjenkov

3 years

I have been fascinated with decentralized, autonomous architectures since Skype was launched ! Since then I have been collecting information about how to design such systems. Now, I finally know enough to start my own "art" project in this space :-) :-) :-) More coming soon !

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Jakob Jenkov

@jjenkov

2 years

My Java Concurrency video playlist is now up to 22 videos: #Java #JavaConcurrency #JavaMultithreading

Java Concurrency and Multithreading

The term Java Concurrency is commonly used to refer to topics related to Java multithreading, concurrency, synchronization, volatile variables, the Java memo...

www.youtube.com

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Jakob Jenkov

@jjenkov

1 year

Need to learn Java lambda expressions? I've got both a textual tutorial plus a set of videos to help you out! Video Playlist: Text: #Java

Java Lambda Expressions

www.youtube.com

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Jakob Jenkov

@jjenkov

5 months

Java GPU programming via Project Babylon - coming to Java soon ! :-) ... and don't forget TornadoVM which does this already today! #Java

Java On The GPU - Inside Java Newscast #58

Babylon is OpenJDK's newest big project to improve Java, specifically aimed at easing execution of Java code on the GPU, which will unlock machine learning a...

www.youtube.com

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Jakob Jenkov

@jjenkov

2 years

We have added so many abstraction layers to computing, that fewer and fewer people understand what goes on at the hardware level. The result: Slower software, bloated software. The solution: Radical simplification!

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Jakob Jenkov

@jjenkov

6 years

With Java 10 just released, Java is gaining momentum again... love it! #java #java10

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Jakob Jenkov

@jjenkov

1 year

Anyone interested in a short tutorial series about Undertow? The minimalistic web server used inside JBoss Wildfly - implemented in Java ? You can create a fat-jar with Undertow and your service - from around 4-5 MB in size. Pretty good! Good performance too! #Java #Undertow

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Jakob Jenkov

@jjenkov

3 years

My Java Concurrency video playlist is now up to 12 videos: #Java

Java Concurrency and Multithreading

The term Java Concurrency is commonly used to refer to topics related to Java multithreading, concurrency, synchronization, volatile variables, the Java memo...

www.youtube.com

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Jakob Jenkov

@jjenkov

1 year

My Java Functional Programming introduction - with a few fixes :-) #Java #FunctionalProgramming

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Jakob Jenkov

@jjenkov

1 year

Doing some work with Java virtual threads within an ExecutorService. Seems reasonably easy. Updates of my Java ExecutorService + Java Virtual Thread tutorials will follow soon! #Java

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Jakob Jenkov

@jjenkov

1 year

Just updated my Java virtual threads tutorial :-) ... now with a nice diagram! :-) #Java

Java Virtual Threads

From Java 19 virtual threads were added to Java. This tutorial explains how to create Java virtual threads, and how they differ from system threads in Java

jenkov.com

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Jakob Jenkov

@jjenkov

1 year

Should you JIT or AOT your #Java app? @FrankDelporte has made a summary of the pros and cons here:

JIT Performance: Ahead-Of-Time versus Just-In-Time

We talked with many developers and DevOps engineers, and a recurring question was about the difference between JIT performance and AOT.

www.azul.com

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Jakob Jenkov

@jjenkov

1 year

Azul's Prime Java VM can run Java faster than OpenJDK. This 16 minute video explains why / how: @AzulSystems #Java

Faster Java Without Changing Any Code by Simon Ritter

For more info on the next Devoxx UK 👉 https://www.devoxx.co.ukApplications that run on the JVM benefit from a managed runtime environment with JIT compilat...

www.youtube.com

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Jakob Jenkov

@jjenkov

2 years

Anyone interested in using #Java for more graphically advanced use cases such as video players, 2D and 3D graphics, games, animation etc? Or, are you more into the already established platforms such as Unity and Unreal Engine ?

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