Java and Groovy are so much alike

[doggy8088]

I paste a Java code, but VSCode recognize as a Groovy language. I think these two languages are almost the same, but how can I configure prefer Java over Groovy?

package com.example.demo4;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Demo4Application {

	public static void main(String[] args) {
		SpringApplication.run(Demo4Application.class, args);
	}

}