Example of using a JFR event from Java code

Example.java

 import jdk.jfr.Event;
 import jdk.jfr.Description;
 import jdk.jfr.Label;

 public class Example {

   @Label("Hello World")
   @Description("Helps programmer getting started")
   static class HelloWorld extends Event {
       @Label("Message")
       String message;
   }

   public static void main(String... args) {
       HelloWorld event = new HelloWorld();
       event.message = "hello, world!";
       event.commit();
   }
 }