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NullAway
A tool to help eliminate NullPointerExceptions (NPEs) in your Java code with low build-time overhead
Would be cool if Java got this feature, explicit optionality at a language level a la T? is an enormous developer QoL in Kotlin and Typescript in my experience. In Java there's tools like NullAway [1] but they're a hassle.
Language-level support is leagues better than Optional/Maybe in my experience too because it keeps the code focused on the actual logic instead of putting everything in a map/flatMap railway.
[1] https://github.com/uber/NullAway
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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AFAIK you can still use it for older frameworks. The compiler embeds the attributes into the assembly when they're known to not be part of the runtime library [−3.7]. You can do the same with the various conditional nullability attributes.
[−3.7]: https://sharplab.io/#v2:EYLgHgbALAPgAgZgARwExIMJIN4FgBQSRKyc...
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> Spring has first class support for any JVM language that helps them bring money to the table.
The Kotlin support is on a complete different level. Go to https://start.spring.io/, you get an option of Java, Kotlin or Groovy - no Scala, Clojure etc. Dedicated Scala support especially never really took off.
> It definitly has an influence on available jobs.
I worked at two different companies on almost exclusively Kotlin codebases and have interviewed for several more. There are enough jobs to keep me employed with a good salary and even if those jobs disappeared, I would just learn some other language, no big deal. In the meantime, I get to use a language that's actually decently fun to write.
I get that the very existence of Kotlin somehow offends you, but you don't have to shout it from every rooftop. There's enough space on the planet for everyone.
