Spring Initializr Maven Project jar demo build exception

Maven Project
Packaging : Jar 
Java Version : 1.8
Language : Kotlin/Java
Build exception:
Error: Main method not found in class com.vignesh.RestfuldemoApplication, please define the main method as:
public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

The above exception occurs even when the main method is defined properly
I have latest version of IntelliJ Idea Ultimate

Please help.