Can I generate the interim java code in a scala project

Question

I am trying to use VisualVM to profile my scala application. I have added the Go To Source plugin for VisualVM but of course it will only recognize Java code. Is there a way I can specify in my project build that it should also output the interim java code?

I know I can use the following command to do it at a file level:

scalac -Xprint:parse Main.scala

But is there a way I can generate all the java code for a project to a specific directory?

Isn't scala not first converted to java and then compiled as java? — user79074, Dec 10 '20 at 14:24
No, scala is directly converted into java bytecode. Not sure why VisualVM would only support java files - as it should work only with the generated bytecode and extract the line numbers from there. — Johannes Kuhn, Dec 10 '20 at 14:30
I tried adding the src/main/scala folder for my project but when I click "Go to Source" I just get an error: "No source found for..." — user79074, Dec 10 '20 at 14:36

score 1 · Answer 1 · answered Dec 10 '20 at 21:49

1

There is no interim java code. Scala compiles directly to JVM classfile code, without ever becoming Java code.

answered Dec 10 '20 at 21:49

Martijn

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Can I generate the interim java code in a scala project

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