Java doesn't run on iOS. Period. In fact it's almost impossible to build an iOS app using Java - the only ways to do it are essentially to transpile Java to some other language, so Java isn't running on iOS at all.
iOS is one of the most popular operating system in the world by any measure. It supports a lot of languages.
But that is not Javas problem, but IOS. They could use available languages, but they refuse and instead make you use their own programming language, swift. Even more vendor lock-in. Once you start using Apple shit, you join a cult of technology dictatorship.
Does it change the fact that Oracle JDK, hence the Java programming language is not open source though? Or the fact that OpenJDK performs even worse than Oracle JDK?
It doesn't perform worse tho - OpenJDK is developed by Oracle themselves, and Oracle JDK is literally built on top of that with a couple of extra pieces of proprietary stuff that most don't need + longer support
When it comes to performance, Oracle's is much better regarding responsiveness and JVM performance. It puts more focus on stability because of the importance it gives to its enterprise customers.
OpenJDK, in contrast, delivers releases more often. As a result, we can encounter problems with instability. Based on community feedback, we know some OpenJDK users have encountered performance issues.
Do you have a source other than some random blog talking about Spring? Any kind of metrics? Is it 5%, 50%, etc slower? Is that just for Spring?
My group switched from Oracle JDK to a different open source JDK and the difference was either non-existent or too negligible to notice. I'll refute your blog's anecdotal evidence with my own.
In the end, we're comparing the top speed of two buses here. If performance is of primary importance for you, Java probably wasn't the right choice to begin with.
There are tons of articles on the web. I just took the first I found on DuckDuckGo.
I'm glad to hear that you didn't find any issue when switching from Oracle JDK, and I won't debate your good faith nor the exactitude of your particular experience.
My point was to answer the Swift shitposting nonsense in the previous post.
All I see is shitposting on Java. I haven't seen one negative word about Swift. Can we agree that OpenJDK is both open source and performant? That's the only point I'm trying to make.
Can we agree that OpenJDK is (...) open source (...)?
Yes.
Can we agree that OpenJDK is both open source and performant?
I can't agree with something I don't know enough about, and about what I have read opposite statements and experiences.
I have no doubt that in some context, OpenJDK could perform as well as OracleJDK. Some APIs and methods can have been well written from the start. What I do know about software engineering though is that Alpha and Beta stages exist for some reasons.
They said one of the most popular operating systems by any measure.
It beats out all the BSD flavours, RedoxOS, TempleOS, MacOS (by an order of magnitude, I might add), Haiku, AmigaOS, Minix, just to name the more known ones. If you discount servers, it's nearly 30x as popular as Linux. It's on track to having more users than Windows. It gets beaten only by Android, Windows, and potentially Linux because of all the data centers (honestly kinda hard to get a real number on how many Linux servers are out there, especially since a lot are also virtual machines, etc)
As far as operating systems go, iOS is in the top 0.5%, so definitely one of the most popular.
Well, in theory, minix is the base of the Intel management engine so I probably has a pretty good share and probably beats out most things on that list based on deployments.
So, not sure that it would beat minix but the rest of the post stands.
There are hundreds of operating systems, multiple are in the category of "actually used by tens of millions of people": Windows, MacOS, Linux, ChromeOS, Android, iOS, webOS, Tizen, etc are the first that come to mind. iOS gets 3rd place out of those (assuming you don't count billions of virtual machines running in data centers for Linux, in which case Linux also beats out Android). iOS will also beat out Windows soon enough because computers aren't really a thing for normies anymore, most people just get by on a smartphone.
If you only consider the 3 most popular operating systems in the world to be operating systems, then sure, iOS is in last place. But maybe broaden your horizons on operating systems and you'll realize that iOS is ridiculously popular in the grand scheme of things. One day it might even reach #1 as 3rd world countries catch up economically and start buying more expensive phones, but that's just speculation of course.
Your argument is like "Athlete X was in last place in the olympics, so they're nowhere near the top of their sport", ignoring the hundreds of thousands of other athletes who didn't make it to the olympics and never will.
By "most popular" you mean most used, right? I'm asking because the word "popular" sounds like people would actually like the OS. I am using android solely because of the lack of alternatives (iOS being even worse). In general, mobile OSes are complete horseshit if you ask me.