gistfile1.java

$cat Hello.java  
class Hello {
	public static void main(String ... args) {
		runIt( () -> System.out.println("Hello") );
	}
	public static void runIt( Runnable r ) {
		r.run();
	}
}
		
$javac Hello.java 
$javap -c Hello 
Compiled from "Hello.java"
class Hello {
  Hello();
    Code:
       0: aload_0       
       1: invokespecial #1                  // Method java/lang/Object."<init>":()V
       4: return        

  public static void main(java.lang.String...);
    Code:
       0: invokedynamic #2,  0              // InvokeDynamic #0:run:()Ljava/lang/Runnable;
       5: invokestatic  #3                  // Method runIt:(Ljava/lang/Runnable;)V
       8: return        

  public static void runIt(java.lang.Runnable);
    Code:
       0: aload_0       
       1: invokeinterface #4,  1            // InterfaceMethod java/lang/Runnable.run:()V
       6: return        
}