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A comment on Scala projects are difficult to maintain. Parent comment

Re:Scala projects are difficult to maintain by RoyBro on Tuesday March 23, 2021 @09:06AM (#26554498)
Scala compiles to java bytecode. Scala can only be faster then Java, in that Scala can leverage all functionality of the JVM and on top provide extra smarts that Java cannot due to backwards compatibilty it has to offer.
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Re:Scala projects are difficult to maintain by gher-shyu3i on Tuesday March 23, 2021 @11:35AM (#26556235)
This has never been true for non-native languages (Scala, Clojure, Kotlin, etc.) as far as I'm aware. They've always been slower. The JVM is designed with Java in mind and co-evolves with it.
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Re:Scala projects are difficult to maintain by tormeh on Tuesday March 23, 2021 @09:59PM (#26562700)
One of the benefits of Scala's willingness to break bytecode compatibility all the time is that whenever Java/JVM implements a Scala concept, Scala switches to the Java method under the hood. Whenever the JVM gets Java-specific optimisations, Scala will use those. That's honestly pretty cool.
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Re:Scala projects are difficult to maintain by fulafel on Thursday March 25, 2021 @01:30AM (#26576867)
They have in practice been slower because they try to be higher level, more ergonomic languages than Java. There aren't many performance-first JVM languages yet I think (Fortress maybe? They cited JVM problems when they wrapped up though).
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