Intellij gradle kotlin project generate .class files in both java and kotlin directory

Question

I have a Gradle Kotlin project setup in Intellij,

The source directory is as follows:

src
  main
    kotlin
    resource
  test
    kotlin
    resource

When I run from command line gradlew build , the .class files are only generated under ./build/classes/kotlin/main/com/

But if I run build task from Intellij Gradle panel, it generated .class files under both

./build/classes/kotlin/main/com/
./build/classes/java/main/com/

It causes errors on further Gradle tasks.

Since Gradle command line gives me expected result, I am assuming this is an issue related to the Intellij setting/bug.

How can I tell Intellij only generate .class file under ./build/class/kotlin folder?

I am using IntelliJ IDEA 2022.1 (Ultimate Edition).

Answer 1

This must because of some temp issue specific to my local project setting, as I can't reproduce this problem by recreating the project locally from the scrach, closing this issue.

Please ignore this question.