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Make Your Java Code Null-Safe Without Rewriting
(jplus.hashnode.dev)
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this post was submitted on 06 Nov 2025
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Programming
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Isn't kotlin a better option?
Kotlin is great for null-safety, but JPlus allows you to enforce null-safety without rewriting your existing Java code, which can be easier for teams working in legacy projects or who prefer staying in pure Java.
AFAIK Kotlin and Java code can co-exist as source level. Never tried it though. I guess it depends on the end case scenario what to use.
JPlus retains almost all of Java’s syntax while providing conveniences like null checks, allowing Java developers to use it immediately without additional learning. In contrast, Kotlin can utilize Java classes but requires learning Kotlin syntax and its libraries, and it cannot use Java syntax directly or automatically guarantee null safety. Therefore, JPlus offers a distinct advantage over Kotlin.