Jspring (small), Jfall (medium) in the Netherlands (Utrecht) and Devoxx (large) in Belgium (Antwerp, but Devoxx is worldwide really). Although sizes may be relative.

I attended JAX once and it was pretty nice.

I hate this whole article. It's right, but I hate it.

A couple of quibbles, though.

The performance gains from decades of JVM optimization are insane. Garbage collection? Mature. Just-In-Time compilation? Rock solid. Cross-platform consistency? Still unmatched in many cases.

Bullshit. I can't imagine how you can think this if you actually work with Java in "eNtErPrIsE", customer-facing applications that receive more than a trivial amount of traffic. Java is the only garbage-collected language I've used where you have to tune cryptic parameters like -Xmx and -XX:MaxMetaspaceSize to make your application not fall over in prod. And in my experience, Java 21 seems to have made memory management worse at least in some ways.

Want a mature web framework? Spring Boot basically invented “Java, but not painful for web dev.”

Oh, Spring Boot is painful all right. It's just that the pain is outsourced to the most senior dev. The more junior devs spend a few hours banging their heads against something "simple" that the Spring docs say should "just work" but doesn't (just add a dependency here and an annotation there and viola; now your application makes your end-users breakfast), so they take the issue to the one developer on the team whose full-time job is to field these "intractable" issues because they're the only person on the team who will bother to learn how to properly read a ./gradlew dependencies output or who is willing to point their debugger at Spring classes themselves and go look at the Spring source code for answers, or even who actually know what a DispatcherServlet is. The junior devs think Spring Boot makes things "not painful" because when Spring Boot make things really fucking painful they just give the problem to someone else, get back a one-line fix ("you didn't put the @DefaultReverseButtholeRotoRooterFactoryDelegate annotation on your @Autowired member variable on line 86") without having any understanding why it'll fix the issue (Spring and Spring Boot aren't supposed to be "understood"; they're magic; you just slap it in your project and copy-paste shit from StackOverflow or god forbid Claude until it seems to work) and go on with their day.

Will they downgrade the number of devices it runs on?

I agree. The main reason to pay Oracle or any other JDK provider is to get support and patches. There are also specific use cases such as performance considerations where commercial JVMs may have low level optimizations that may be beneficial in certain use cases.

But for general development, even on enterprise level, you'd be fine with regular community editions of OpenJDK. In fact I don't know of anyone who pays for commercial JDKs.

My main gripe is with Oracle, whose business model regarding Java is just scummy in general. If you use Oracle JDK and they come knocking, you deserve whatever happens to you. Google learned this lesson the hard way, we should learn from their experience.

I think its will be goes to deeper specific technical & business sides to looking justification to use Oracle Java SE. Its pretty uncommon, but generally, most of us here just developing application and/or backend for commercial implementation, and didn't require much deeper technical things, like using other JDK's than Oracle Java SE is still handling good in most of our cases.

If you pay to Bellsoft or Azul, I think you'll pay for commercial support from them, like if you running company and using much Java in productions, implementing Java in mass scale, and/or enterprise support, and really need or require support system from Bellsoft/Azul.

*cmiiw

As @deathmetal27@lemmy.world answered, and adding my personal answer, personally I didn't see any problem by using Amazon Corretto.

Currently, there are no contracts nor paid licenses by using Amazon Corretto in commercial use and even in enterprise environment. Nothing, just use it. Compared with Oracle Java SE where if you use it in commercial purpose, Oracle may caught and demand you to pay.

And I spent some of times in AWS too, and I felt, using dual JDK's builds (Corretto for work, and another builds (let say Temurin or Zulu) for personal) is still kinda inefficient. This is the reason of why I stick to Amazon Corretto.

But, if you didn't using AWS and/or didn't like Amazon in general, nobody can force and stop you, there are alternatives, and you can use Temurin, Zulu, or Liberica.

Amazon Corretto is free even for commercial use and is optimized to run on AWS infra.

If you're not on AWS then you have little reason to use it though it's not a bad JDK distro itself.

I personally use Eclipse Temurin both in personal projects and at work.

Literally nobody I know uses Oracle Java. It's either Open JDK or nothing. Even popular frameworks recommend using others (ex. Spring recommends using Bellsoft Liberica).

These alt forks are supported for longer and have the latest security patches while Oracle's Open JDK only provides updates for six months, even for LTS releases. Is there even any legitimate reason to be using Oracle JDK at this point? If it really came to that I'd rather give my money to Bellsoft or Azul over Oracle.

So you're avoiding a corporate ass-hat to go with a corporate oligarch?

This is a reason of why we should avoid using Oracle Java, especially for commercial purposes and in-use for enterprise purposes, and we can see here, its also cost for education institutional too.

Java is still free, but just avoiding using Oracle Java. Oracle providing OpenJDK for free too, but guess, there are third-party 'forks' which seems is more better. Here's the website you can consult: https://whichjdk.com/ and the author of that website recommends: Adoptium Temurin, Azul Zulu, Bellsoft Liberica, & Amazon Corretto.

Personally, Im stick to using Amazon Corretto 😅

More references:

• https://oraclejavalicensing.com/oracle-java-licensing-explained/
• https://stackoverflow.com/questions/61335109/what-is-the-difference-between-azul-openjdk-zulu-openjdk-and-openjdk/61337953#61337953
• https://medium.com/@javachampions/java-is-still-free-3-0-0-ocrt-2021-bca75c88d23b

It is really unfortunate that the main corporate steward of Java is such an asshat.