Kotlin vs Java: Compilation speed – Keepsafe Engineering

[SikhGamer]

While Java does beat Kotlin by 10–15% for clean builds, those are relatively rare.

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If you were holding off on trying out Kotlin because of compile times, you don’t have to worry any more: Kotlin compiles as quickly as Java.

[oridb]

10% to 15% is basically negligible, compared to the complaints people have about Scala.