@JvmStatic

@JvmStatic

In Kotlin, the package-level functions are represented as static methods. Also, in Kotlin, you can make static methods for functions that are defined in some companion object or named object by using the @JvmStatic annotation. For example:

// Kotlin
object Utils {
    fun doSomething() {
        // logic here
    }
}

Now, calling from Kotlin

// calling from Kotlin class
Utils.doSomething()

But, when you call this from Java, you get a compilation error.

// calling from Java class
Utils.doSomething(); // compilation error

You will have to call like this from Java.

// calling from Java class
Utils.INSTANCE.doSomething(); // works fine

How can we make it work without using the INSTANCE?

The answer is JvmStatic.

Our updated Kotlin code:

// Kotlin
object Utils {

    @JvmStatic
    fun doSomething() {
        // logic here
    }
}