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One year after switching from Java to Go

(glasskube.dev)
257 points pmig | 1 comments | 18 Feb 25 16:55 UTC | HN request time: 0.357s | source
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time4tea ◴[19 Feb 25 07:02 UTC] No.43099396[source]▶
The jvm is a pretty insane beast. It will do usage based recompilation, escape analysis for memory, so non heap allocation is super fast, has great memory safety... But a lot of people use it with spring/spring boot, a technology designed to work around the complexities of a particular type of middleware software in the late 90s and early 2000s. It's cargo cult programming of the highest order. In the OP, the author is comparing apples with oranges, with a bit of misunderstanding that java/jvm means spring boot, and while that is true for a lot of people and certainly a lot of stuff on the internet implies that 'this is the way', it's not required. Startup times of ~100ms are absolutely standard for a big program, similarly unit tests taking 1ms. I prefer to write kotlin rather than java, as it's a nicer language ,IMHO, but still those bytecodes run on Jvm and same stuff applies.

Edit: im not advocating writing 'ls' in java, and I would also agree that java uses more memory for small programs, so its not a systems programming language probably.

Just use new() it's pretty fast.

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okeuro49 ◴[19 Feb 25 08:32 UTC] No.43099935[source]▶
> But a lot of people use it with spring/spring boot, a technology designed to work around the complexities of a particular type of middleware...

No, people use it because we don't want to reinvent the wheel.

Spring is well documented and Spring Boot gives you a set of dependencies that all work together.

Then you don't have to spend time messing around with things like OAuth and authentication, you can just write the application.

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anthropodie ◴[19 Feb 25 08:53 UTC] No.43100066[source]▶
> Then you don't have to spend time messing around with things like OAuth and authentication, you can just write the application.

It sounds good but in reality people end up spending time messing around with config files and annotations.

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1. javanonymous ◴[19 Feb 25 23:28 UTC] No.43109133[source]▶
> It sounds good but in reality people end up spending time messing around with config files and annotations.

I use Spring Boot at my day job and write mostly web services. I don't spend time messing around with config files and annotations. When I create a service class, I annotate it with @Service, and that is mostly what I need.

Example:

   @Service
   public record ItemsService(ItemsRepository repo) {

      public void doStuff(String country) {
         var items = repo.findByCountry(country);
         // do stuff with items
         
      }
   }
Later versions of Spring Boot has reduced a lot of the annotations necessary, like @Inject if you use constructors etc. There are of course other annotations and configurations, but 90% of what I do is similar to the example I gave above. Things may have changed since last you used it, but the amount of "magic" and annotations is often much less than what is posted in these types of discussions.