What is custom annotations best practices in Java?

// Example of a custom annotation in Java
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME)  // The annotation will be available at runtime
@Target(ElementType.METHOD)          // The annotation can be applied to methods
public @interface MyCustomAnnotation {
    String value() default "default value";  // A method to set custom values
}

// Using the custom annotation
public class MyClass {

    @MyCustomAnnotation(value = "Example of custom annotation")
    public void myAnnotatedMethod() {
        System.out.println("This method is annotated with MyCustomAnnotation.");
    }
}